Games seem playable running through Microsoft’s inferior x86 compatibility layer in a Windows ARM VM on M1 Pro/Max, so I don’t see how running games through Rosetta would be any worse.
Some games are a stable 4k120 and others are more like 4k75.
I feel the 3090 could feasibly drive 5k60 as a result.
GTAV on Win11 Arm VM - okay, but not great.
GTAV on Crossover - much much better, lack of joystick support (but that's a crossover issue)