Hey Avid, I noticed this as well when I played yesterday.
Definitely seems to be an issue with my VR engine that I programmed many years ago. Unfortunately, I think the system that handles player height is completely broken due to some update on the Quest.
If you want to trick the game code to make you the correct height, try setting your ground level at your waist. Then use the height slider in the settings to set a proper playing height while seated.