Most users frankly don’t care how software is packaged. They don’t understand the difference between deb / rpm / flatpak / snap. They just want a button that installs Spotify so they can listen to their music.

I don't think this is what really matters at the end, since whatever is the implementation the goal should be to provide a library that people actually like to use.

I’ve not once in 20 years seen a situation where the confusion between URI or URL actually mattered.