The boot log was the key. I removed brltty (which is braille display) and /dev/ttyUSB1 now became visible and connects me to the esatto. Now if only I could figure out why the pegasus port often won't connect with the:

2022-07-26T02:26:53: [WARNING] Port /dev/serial/by-id/usb-Pegasus_Astro_PPBADV_revB_PPBA5UXVM0-if00-port0 is already used by another driver or process.

error I would be all set.

This was probably similar to the cases observed by others where gpsd and vantage were conflicting.

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