A browser I used to like to use was GNOME Web, AKA Epiphany. It is now available as flatpack only, which ruined it, I guess. It went from fast and sleek to a hard drive churning dog with horrible UI (user interface) and features missing. I’m thinking these alternative packaging systems are not good, but what do I know.
Same for Chromium browser. Installing from snap makes the UI bad. I’d rather have the full Chrome browser directly from Google than the current Chromium installed as snap.
It will have to be quite compelling before I install from flatpack or snap going forward.