How much effort installing an alternative OS is depends on which device and OS you choose.
E.g. installing GrapheneOS on a Pixel phone is a four button install process in your browser, it couldn’t be much easier.
(Finding and importing a phone is something you have to do even when using the stock OS.)
For something like a gamepass it’s debatable.
You probably pay more if using a gamepass, but you also try a lot more games.
If you played as many games without a gamepass as with one, you’d pay a lot more.
But without a gamepass, you usually restrict yourself to fewer games.
Whether removing such restriction is worth the (not as significant) additional cost is subjective.
So there’s an actual case for subscription in cases like this.
(The reason subscriptions make some sense here is because digital items are artificially limited. With physical items or services subscriptions are almost always a money grab. But with artificially limited things, such as digital items, subscriptions can definitely be reasonable.)
It’s a very simple launcher which makes accessing your favorite applications easy and quick, no matter whether your finger is in the top right or bottom left of your screen.
that’s eight years ago