Flatpak does deduplication, if two apps include the same dependencies then that's only stored once.
What this means is that the more you lean into flatpaks, the smaller the individual app footprint on your drive becomes.
The main benefit as an end user is gaining access to software that might've never ended up in the distro repository either way. And not having to worry about missing dependencies is a nice bonus.
I recommend getting Flatseal to get a nice GUI for handling flatpak permissions.


