I trust GOG the most, but Steam is solidly second-most. Guaranteed that if Epic had their way, the PC gaming landscape would be just as trash as the console one, if not moreso.
Valve could definitely go off the deep end after Gabe is gone, and that’s why good third-party competition is still healthy. But for right now, they’re one of the few large companies I’ve seen that aren’t on the enshittification warpath.