The most promising one, sharpemu, is inching closer and closer to getting in game in Demons Souls *and* already boots some games such as Dreaming Sarah.
Personally I think it'll only be a month or two before we start seeing polygons rendered in big boy games, but I doubt GTA VI will be playable at launch (though I hope it is). Fact of the matter is that it is progressing incredibly quickly. Infact from my PoV I believe this is the fastest an emulator for a modern console has actually gotten in game, granted it was 2D and PS4 emulators got there pretty quickly... but yk.
Just for reference, ShadPS4 has been in development for 3 years and now mid range PCs from 10 years ago can play PS4 games better than the PS4 could (AS FAR AS I'VE HEARD). Give it some time and I'm sure most PCs with at least PS5 level performance will be able to play most PS5 games at full speed.
https://github.com/sharpemu/sharpemu