Meta 3 and steam deck experience?

I understand it’s possible. Currently have the xreal airs and thinking of switching for the anchored screen. Don’t want to pay for the beam and the quest is obviously more immersive. Feel like I would go the capture card set up route. Clunky but workable

My question is has anyone done this with decent success for fairly demanding AAA games? I play ones like Spiderman, cyberpunk… Looks like it works just as good as the xreals with more function to it. Or am I better off with the airs and staying flat on my bed?