Perhaps it's changed in the last couple of years, but Plex made the process of not letting it call home extremely difficult, and defaulted to new garbage being turned on as they added new garbage, and re-enabling garbage that they made big changes to.

After multiple internet issues resulted in me not having access to my local Plex server and not being able to fix that, I decided to drop it. Maybe tons of backlash prompted them to fix this? I don't care, I'm a happy Jellyfin user now.