I’ve owned and deployed a lot of pi, every model, and in my experience when I have similar instability as you described its related to the sdcard. Either the sdcard itself or the tray soldered to the pi. I had one pi that would corrupt the sdcard without fail after 2 months and I played with bending the sdcard metal tray inward a little to help press the card better into the contacts and the problem went away. Try fiddling with the sdcard holder or different sdcards.

Required course work for electrical engineers in the early 2000s.

I had to google ventoy and now I feel like a cave man because I have a dish with 6 flash drives that all have different ISOs

Foldersync pro has worked flawlessly for me for over a decade. At first I just used samba on my LAN and it would sync at night but then I spun up new and more services and it supports most all of them. I highly recommend.

I have a c920 and it’s complete poop. Random hiccups and stutter and the auto focus fails.

I’ve gone rogue at work and formated my windows laptop with Debian which I’m also extremely comfortable in with stripped down servers. Running Wayland and using Microsoft teams and tools via the edge browser (mandated) has been absolutely pleasant. There are still initial headaches initially setting everything up and getting the drivers to work and thunderbolt docks to work but now its awsome. Best part is the 10 second shut down time when I run between meetings.

Deleted the certs from the sshd daemon which locked me out of a remote server that required and a 2 hour drive to fix.

For what it’s worth I recently moved from Wordpress to Grav and I’m not looking back. It’s a web server and the editor is built in but it’s all markdown and fast as hell. The file system is flat and easy to understand. I’m smitten.