[nerdawson]

That’s an interesting point.

If some game announced you could only get it through an alternative app store, I wouldn’t play that game.

Banking is critical functionality on the other hand. Under those circumstances, I’d change banks. The likelihood of any major bank attempting that seems awfully low and I’m sure it’d attract the widespread condemnation it deserves.

Android has sideloading. I don’t doubt some apps try to push users to an alternative marketplace but important everyday apps are where you’d expect them to be.