> if they have to type `sudo apt search my_package` and then `sudo apt install my_package` all the time.

As opposed to the much easier `flatpak install com.fqdn.app.name`? Don't confuse underlying package format with CLI/GUI; Synaptic, GNOME Software, Plasma Discover, etc. are fine ways to install normal packages.

I've had it set up so you can just double-click the Flatpak files, not too dissimilar to an exe download.