Moved from Gentoo to Ubuntu in 2008 as I needed to focus more on my job, moved back to Gentoo in 2022. Snaps were part of it, but really the lack of maintenance and vision around the apt repository was really the issue. More and more I was installing stray debs, or having to use flatpaks / AppImages for what what I wanted the system to manage for me.
Not that I've entirely stopped using flatpaks or AppImages, but the process of creating an ebuild is far simpler than trying to do anything with a deb. For a while I had hope about the ppa, however that became fewer and fewer. I do think that the battle to have a comprehensive software repository is a loosing one because of the way things are currently structured.