From my subjective (user) point of view, flatpak is pretty fine. Yes, I do get annoyed whenever I run flatpak update and see 5-10 updates to drivers or runtimes

From my subjective (user) point of view, flatpak is pretty fine. Yes, I do get annoyed whenever I run flatpak update and see 5-10 updates to drivers or runtimes in the range of ~100MB each. But I also want applications to be "just working". What kinda annoys me though is that file dialogs open in the background. Now I am used to check for it, but when the main window is still in front, yet blocked, because focus is in the file dialog modal, that can get confusing for a moment. AppImage is ok for me too, the application needs to be "complex" enough to justify the download size though. Precisely what the KCalc example from the article does not do. I didn't even know there is a daemon thingy that auto-integrates them, usually I put them in a folder, grab an icon somewhere and place it next to it with same name, then add an entry in OS manually, so it appears in app starter, can be placed on task bar, etc. It's just a few clicks and if I ever get annoyed by it because I find myself doing it several times a day, I should ask myself if I am maybe just installing way too much stuff? :) Edit: Wanted to mention there is an application called "FlatSeal" that lets you view and (to a degree) edit permissions of Ftatpak Apps. https://github.com/tchx84/flatseal https://github.com/tchx84/flatseal (I use it for spectating only on occasion, because too much fiddling will probably break the app at some point).