It’s not that I’ve never had any problems. It’s more that those are infrequent one-time problems, and if something happens once every two years that takes me 30 minutes to solve, I’m willing to do that if it makes the day-to-day use of my system smoother. Flatpak feels like I’m rubbing just a little bit of sandpaper across my face 20 times a day, and the promise is, “yeah, but look how you’ll never have to solve this minor one-time things again”, and that’s just not a trade I want to make.