Segmentation has been tough for a Linux newbie like myself. I hope there can be greater unification some day so that applications have one install type, and come with greater predictability.
It's still annoying even if you're experienced with Linux. Especially if there's multiple install methods for the same app with different levels of support.
Flatpak is the closest thing thus far, but certainly hasn't "won" yet.
This is actually a solvable problem. You provide a single store interface where you install flatpaks and traditional packages. Linux Mint does a pretty good job of this.
With Arch you can basically rely on system packages and the AUR for 99.9% of everything.
Either way wrapping an interface around 1 or more method is a fairly trivial matter.
It doesn't solve the multiple install methods issue.
Fedora for instance already has this via Gnome Software, but provides a drop-down if multiple sources are available for an application, so it's still fragmented. Even if you removed that and had some sort of heirarchy, one app might have a better experience via Flatpak whilst one might be better via RPM.
Until developers consolidate it's really not solved, IMO.
