Yes but the 5090 can run games.

Running games on my loaded M4 Max is worse than on my 3090 despite the over-four-year generational gap.

Like, Pacific Drive will reach maybe 30fps at less than 1080p whereas the 3090 will run it better even in 4K.

That could just be CrossOver's issue with Unreal Engine games, but "just play different games" is not a solution I like.