crossing fingers for you
I went an entire day yesterday without the crash.
My best guess is that the Mac os Sequioa issues a dialogue for allowing third party apps to access storage and external storage. I finally got that approval window to come up for Illustrator (no idea why it didn't pop up first thing). Once I approved Illustrator's access, the finder crashing stopped.
I believe you can pre-empt the crashing by going to settings:
navigate to System Settings > Privacy & Security > Files and Folders, then select the specific Adobe app and enable access to the desired locations on your external storage device
Perhaps someone could verify this? Not much info on this out there that i could find.
Thanks for all of your help Monika!