Eth 2 will sort fees out. Hopefully.
Why have hope when you can just move to a cheaper chain? It seems like a thing that's been promised for a while and never actually done, who's storing the eth chain when it's a few petabytes in size also (unless that's why they're switching to PoS)?
Vast majority of them are still browser-style crap, but soon AAA stuff will start coming out, when major game studios realize the potential to make even more money that way.
OK so the gaming industry is slow but I don't think it's that slow play to earn is probably something that'll take a while to come out, most mmo games ban you from selling stuff anyway in their terms (I think it requires extra licensing).