People who can’t figure out things (and as you noticed it’s very hard), pay the most taxes of anyone in Europe, while people who earn enough can hire a specialist that tells them how to profit from deductibles, subsidies and fake self employment etc. The tax services routinely issue fines that were deemed illegal multiple times by judges in the past and it’s up to their victims to protest against this.
Are you sure you’re not Eastern European?
My point is that the difference is that GOG only needs to compete with the feature-completeness and the momentum of Steam, while F-Droid is legally unable to have the same features as Google Play.
GOG could integrate achievements, a good launcher, a mod workshop, the whole community thing, get a lot of games on the platform, and eventually they would be able to offer the same experience to a newcomer as Steam. Existing customers would take time to switch, maybe, but still.
It’s a better position where F-Droid is just legally unable to offer a competing service to Google Pay or the Google Play infra APIs. Also, Steam does not come preinstalled on every Windows PC (or even Linux/Mac), while GPlay is the first thing to start up on every Android phone.
All that doesn’t stand for the Deck obviously, there it’s more similar, still not the same though as I understand.