I’ve been involved with Linux for a long time, and Flatpak almost seems too good to be true:
Just install any app on any distro, isolated from the base system and with granular rights management. I’ve just set up my first flatpak-centric system and didn’t notice any issues with it at all, apart from a 1-second waiting time before an app is launched.
What’s your long-term experience?
Notice any annoying bugs or instabilities? Do apps crash a lot? Disappear from Flathub or are unmaintained? Do you often have issues with apps that don’t integrate well with your native system? Are important apps missing?
I’ve gone back to using packages from my repo. I was all-in with flatpaks for a while because they tend to be more up to date than my distro’s packages and I liked the idea of the sandboxing but in practice I’ve found it a nuisance getting applications to speak to each other and I don’t like all the redundant code bloating my internal drive. The thing that really did it for me though was the other day when I had to restore my system from a Timeshift backup. It took an hour and a half to restore a recent backup, with well over 90% of that time showing as flatpak stuff.