I did this about a year ago and haven’t looked back. The only thing that’s sometimes a problem is if a game has anti cheat stuff that’s super Windows specific, but I wouldn’t want to run those things anyway.

I think you might just not be interested in federated services. The whole point is that it’s a network of independent services, not a single unified platform. For some people that works well and for others it doesn’t. The fediverse solution would be to create a new account on an instance that federates with both instances, but you’re probably going to end up playing whack-a-mole until things settle down and I don’t blame anyone for not wanting to do that.