I don't agree with him 100%, but I always find Drew DeVault to be thoughtful on this topic:
https://news.ycombinator.com/item?id=32936114
https://drewdevault.com/2021/09/27/Let-distros-do-their-job....
Basically, he argues that application distribution outside of the distro (a la flatpak, snap, appimage) is just a bad model. The right model is the one distros have been using for years: You get software through the distro's package manager, and that software is packaged by people working on behalf of the distro. As he says: "Software distributions are often volunteer-run and represent the interests of the users; in a sense they are a kind of union of users."
The other issue, of course, is that in practice flatpaks/snaps/appimages never seem to 100% work as well as distro packages do.
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