You can theoretically solve a lot of problems with crappy, multitudinous game stores - easier payments, lighter software. But the real question is: do I trust that I'll be able to continue downloading my purchases for the foreseeable future? I trust that Steam will be around for a very long time. I can download DRM-free installers from GOG. Everyone else? I don't know, I have much less confidence.
I see this as is something that legislation could fix: digital licenses should be transferable between digital stores. If I buy a game in store X, and it’s available on store/platform Y, I should be able to play it on both. Unfortunately, I don’t think that’s the case. I recently bought a Nintendo Switch, and although I’m happy overall, some games have very heavy limits built in (think: max number of units in games),…
Mandating transferable licenses across platforms means that a PC player who has no intention of ever owning a console device now has to pay for the engineering of the port (and vice versa for console players).
On the same platform, OTOH, this seems like a decent idea.