I'm having the same problem. Can't update to the latest version 1.0. I Google Search for something called "App Lab" but All i can find is something called "Sidequestvr". It's asking me to sideload and link to a developer account. I don't see anywhere to simply login with an existing Meta Quest account. This is super confusing and complicated process. I just want to update the app using App Store on Quest like every other app. Not sure why this has to be so complicated and frustrating. Needs to be massively simplified.
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I finally figured it out. But it really is more complicated than it needs to be. Every 2 seconds I get a pop-up reminding me that this is an App Lab app, blah blah blah. Maybe it's time to get it out of Beta and into a normal ordinary release cycle. The software certainly seems stable enough for that. Seems like App Lab is for really junky, unstable, pre-Alpha, craptacular software only for the riskiest software testers. I think HereSphere is sufficiently mature, and now with the 1.0 version number, can't you go ahead and call it Officially Released ?