I can't see this kind of thing being even slightly useful until it has a better battery life or a smaller form factor, ideally both.
As it stands now, where it's still very conspicuous and the battery life is so short that you're only going to be wearing this exactly when you're using it, I can barely see any practical advantage here compared to something like a Quest 3. Better battery, better performance, better visuals, better FOV...with the only real tradeoff being that it's bigger and the passthrough (which you're not relying heavily on anyway) is blurrier.