There it is...
Baud Rate was set to 19200 (probably didn't matter...)
And the PortType was set to AUX/PC instead of USB/HC.

[2023-03-29T19:02:10.806 PDT INFO ][           org.kde.kstars.ekos] - Connecting to "CGEM II Wired"
[2023-03-29T19:02:11.019 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Connecting to /dev/serial/by-id/usb-Prolific_Technology_Inc._USB-Serial_Controller_D-if00-port0 @ 9600 "
[2023-03-29T19:02:11.255 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Port FD 3 "
[2023-03-29T19:02:11.255 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Connection successful, attempting handshake... "
[2023-03-29T19:02:11.255 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] CAUX: connect 3 (serial) "
[2023-03-29T19:02:11.282 PDT DEBG ][           org.kde.kstars.ekos] - Connecting  "CGEM II Wired"
[2023-03-29T19:02:11.282 PDT INFO ][           org.kde.kstars.ekos] - "Connecting INDI devices..."
[2023-03-29T19:02:11.304 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[INFO] Setting serial speed to 9600 baud. "
[2023-03-29T19:02:11.307 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <56> "
[2023-03-29T19:02:11.307 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] aux_tty_read: 3 "
[2023-03-29T19:02:11.307 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[INFO] Detected Hand Controller (v5.34) serial connection. "
[2023-03-29T19:02:11.307 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Communicating with mount motor controllers... "
[2023-03-29T19:02:11.308 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] CMD <     GET_VER>  APP ->  AZM "
[2023-03-29T19:02:11.315 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <50 01 10 FE 00 00 00 04> "
[2023-03-29T19:02:11.315 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] RES (9 B): <3B 05 10 20 FE 06 32 00 00> "
[2023-03-29T19:02:11.315 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] Got 5 bytes:  ; payload length field: 48 ; MSG: "
[2023-03-29T19:02:11.315 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] [30 30 00 00 FE 06 32] "
[2023-03-29T19:02:11.316 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] RES <     GET_VER>  AZM ->  APP [06 32 00 00] "
[2023-03-29T19:02:11.316 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] CMD <     GET_VER>  APP ->  ALT "
[2023-03-29T19:02:11.317 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <50 01 11 FE 00 00 00 04> "
[2023-03-29T19:02:11.317 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] RES (9 B): <3B 05 11 20 FE 06 32 00 00> "
[2023-03-29T19:02:11.318 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] Got 5 bytes:  ; payload length field: 48 ; MSG: "
[2023-03-29T19:02:11.318 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] [30 30 00 00 FE 06 32] "
[2023-03-29T19:02:11.318 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] RES <     GET_VER>  ALT ->  APP [06 32 00 00] "
[2023-03-29T19:02:11.320 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[INFO] Got response from target ALT or AZM. "
[2023-03-29T19:02:11.321 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Connection ready. Starting Processing. "
[2023-03-29T19:02:11.321 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] CMD <MC_GET_AUTOGUIDE_RATE>  APP ->  AZM "
[2023-03-29T19:02:11.329 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <50 01 10 47 00 00 00 01> "
[2023-03-29T19:02:11.330 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] RES (6 B): <3B 02 10 20 47 80> "
[2023-03-29T19:02:11.330 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] Got 2 bytes:  ; payload length field: 2 ; MSG: "
[2023-03-29T19:02:11.335 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] [3B 02 10 20] "
[2023-03-29T19:02:11.335 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] RES <MC_GET_AUTOGUIDE_RATE>  AZM ->  APP [80] "
[2023-03-29T19:02:11.335 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] CMD <MC_GET_AUTOGUIDE_RATE>  APP ->  ALT "
[2023-03-29T19:02:11.336 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <50 01 11 47 00 00 00 01> "
[2023-03-29T19:02:11.336 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] RES (6 B): <3B 02 11 20 47 80> "
[2023-03-29T19:02:11.336 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] Got 2 bytes:  ; payload length field: 2 ; MSG: "
[2023-03-29T19:02:11.336 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] [3B 02 11 20] "
[2023-03-29T19:02:11.336 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] RES <MC_GET_AUTOGUIDE_RATE>  ALT ->  APP [80] "
[2023-03-29T19:02:11.337 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[INFO] CGEM II Wired is online. "
[2023-03-29T19:02:11.337 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Configuration successfully saved for DEVICE_PORT. "
[2023-03-29T19:02:11.337 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Configuration successfully saved for DEVICE_BAUD_RATE. "

[2023-03-29T19:02:14.190 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] CMD <     GET_VER>  APP ->  BAT "
[2023-03-29T19:02:14.240 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <50 01 B6 FE 00 00 00 04> "
[2023-03-29T19:02:15.242 PDT DEBG ][           org.kde.kstars.indi] - < CGEM II Wired >: < Firmware Info >
[2023-03-29T19:02:15.260 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[INFO] InitPark: No Park data in file /home/stellarmate/.indi/ParkData.xml: No park data found for this device "
[2023-03-29T19:02:15.262 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[INFO] Mount is unparked. "
[2023-03-29T19:02:15.262 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Setting Park Axis1 to 4194304.00 "
[2023-03-29T19:02:15.262 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Setting Park Axis2 to 4194304.00 "
[2023-03-29T19:02:15.263 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Setting Default Park Axis1 to 4194304.00 "
[2023-03-29T19:02:15.263 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Setting Default Park Axis2 to 4194304.00 "
[2023-03-29T19:02:15.263 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] CMD <MC_GET_POSITION>  APP ->  AZM "
[2023-03-29T19:02:15.298 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <50 01 10 01 00 00 00 03> "
[2023-03-29T19:02:15.553 PDT INFO ][           org.kde.kstars.ekos] - "CGEM II Wired is online."
[2023-03-29T19:02:15.555 PDT INFO ][           org.kde.kstars.ekos] - "Guider port from CGEM II Wired is ready."
[2023-03-29T19:02:15.967 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[ERROR] Resp. char 4 is 00 ascii  "
[2023-03-29T19:02:15.968 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[ERROR] RES <7C FF 37 89 55 00 00 00> "
[2023-03-29T19:02:15.969 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CAUX] CMD <MC_GET_POSITION>  APP ->  ALT "
[2023-03-29T19:02:16.015 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[CSER] CMD <50 01 11 01 00 00 00 03> "
[2023-03-29T19:02:17.018 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[DEBUG] Encoder [Axis1: 0 --> LST:  6:32:09 HA: -12:00:00 RA: 18:32:09] [Axis2: 0 --> DE:  0:00:00] "
[2023-03-29T19:02:17.025 PDT DEBG ][           org.kde.kstars.indi] - CGEM II Wired : "[ALIGNMENT] Mount -> Sky RA: 18:32:09 DE:  0:00:00 AZ:  0:00:16 AL: -50:34:04 HA: -8:57:03 Pier: PIER_EAST "
[2023-03-29T19:02:17.077 PDT INFO ][           org.kde.kstars.indi] - CGEM II Wired :  "[INFO] Loading device configuration... "


...let me know if you need more

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