I agree with this. On top of that, the experience in games is often downright weird. I'm no Apple user, but on Android, you're in the game, you try to buy something, it pops the Android payment UX, you pay, then you wait a sec or two, get your thing in the game.

If its a Gacha or something, you then are getting some in-game currency, that you then have to redeem for the item you wanted. The extra steps are really annoying, and if its a company I trust, it would be easier to give them my info to smoothen things up (big if, mind you)