I also had issues with Ubuntu's snap Firefox. And I am also considering leaving (after almost 20 years). My biggest issue was snaps taking huge amohnt of disk

I also had issues with Ubuntu's snap Firefox. And I am also considering leaving (after almost 20 years). My biggest issue was snaps taking huge amohnt of disk space. My 30GB system partition was running out of space. What I usually do is to move the big stuff to another disk and symlink to it. Moving snap directory this way caused mounting issues, Firefox was unable to download anything. I switched to normal Firefox from apt (non-snap) and it works. I am considering Debian. I think Ubuntu (like Mozilla) needs to realize who is their user base - increasingly conservative, occasionally tinkering, users. They need to be more careful with sweeping changes.