Check out box86. There are videos of people running various games with it.
I posted a link in this thread of someone playing world of Warcraft on a pi 4.
I’m not saying that it’s ready to go today, but in a few years it will be great. Especially if valve develops for it the way they did it it proton.
I agree that translation layers will slow things down, but I don’t think it will be too terribly slow especially as more powerful chips come out.