I don't have a spot to do room scale but I'm not worried about that detracting from anything. I have a psvr in a room where the lights can be dimmed and 2 key spots for the camera. One for sitting one for standing.
The standing position is a bit far and high. It really stretches the bounding box of what it can capture and keep steady tracking. With that position, I can reach (even down pretty far. About to the knee), duck, lean, and take a step in every direction. I move the coffee table out of the way (put sliders on it) and throw a couple of pillows down to make a little pen. It's about 4 feet wide and 2 feet deep. I can use my whole body and reach in every direction a decent amount with that little space on a psvr.
Something with better/360 tracking would work miles better. You could reach as far as you can in every direction, turn around, or even touch the ground. All inside the standing room right in front of the couch. Nothing I've seen in alyx strikes me as anything you would need room scale for.