You're talking about streaming/remote control of a PC which can involve significant latency and lag spikes (unless you're tethered with a good USB cable). That is by definition
not a stand-alone headset. You're just using it as a fancy VR dongle.
This necessitates two things:
* Your PC is powerful enough to run VR games
* Your PC is in an area that's convenient to play (with plenty of room)
Nearly
all Quest 2 users are using it stand-alone. They're not hooking it up to a PC. There's a tiny fraction of users that do the PC VR thing with Steam but that's so small as to be negligible in the overall market.
You're actually kind of making my point: Imagine if you didn't need the PC or the tether and could just play those great, easy-to-mod PC VR games directly on the headset. The market for VR would undergo a massive, positive change.
I'd also like to point out that tethering limits the fun you can have! Example: https://replay.beatleader.xyz/?scoreId=7668607
You can't play Beat Saber like that if you're tethered.