I was able to get rid of this annoyance by:
- Enabling the Developer mode.
- Disabling the boundary altogether.
I lost the passthrough feature but I guess, Meta taketh what it giveth. With that damned boundary enabled, the Home screen would disappear; I would see a blue line running across the screen in any app I started when I turned my head sideways, and that crappy app called SkyBox (which is unsurprisingly the best movie player in the Meta app store because Meta won't make its highly paid developers build a decent movie player) kept going dark every 5 seconds - no sound/video; just a gray screen (not black, because Meta's lens, due to their inferior quality don't know what black is) with sometimes the boundary grid showing up.
I was so incensed that I was planning to return the device & leave a scathing review @ Amazon, but then I figured how to get rid of the boundary. The lack of passthrough makes the Quest 3 a Quest 2 with better lens.
PS: To experience MR, even in a non-gaming app, you'll have to share data about your surroundings with Meta. That scares the living daylights out of me. Look at what it did when it had access to our profile data. Now imagine what it could do if it had access to something as personal as the layout of our homes.
Had Apple priced its Vision Pro in the $1500-$2000 range, I would have waited for it 😞. Till Apple makes its device "affordable", we'll have to tolerate the Zuck.