That is on software developers, many of which refuse to package their software. There are Snaps, Appimages, Flatpaks, etc. Free software isn't like Windows where developers are always packaging their software. Package managers don't impact this whatsoever, and what you're basically complaining about is that unpaid contributors make something easier for people that they wouldn't otherwise be able to easily do without them.
I'm complaining that the community's reliance on package management has set the expectation that unpaid contributors make software work on the platform.
