Do you honestly think this is a worse scenario than having to buy all of your apps/games through Microsoft's app store? Can you imagine using macOS without homebrew because everything has to come from Apple's app store? Can you imagine using Ubuntu without apt because everything has to come from the Canonical's software center? Even Android is made slightly more tolerable by the existence of F-Droid.
Being able to use your preferred software manager/store for everything would be nice, but I don't know of any platform that lets you do that. You either have to deal with multiple software managers and use your preferred one as much as possible, or you're stuck with whatever the platform forces on you. I definitely prefer the former.