The Quest 3 OS and UX is much jankier than VisionOS.

Which is a huge downside for something that users are literally forced to stare at.

This so much. Can wear the AVP for hours uninterrupted, but lasted 10 mins in Occulus 3 before getting queasy. Have given AVP demos to dozens of people, offering varying degrees of guidance and everyone just "gets it" after a couple minutes regardless. Eye and hand tracking UI is phenomenal and awesome.

Since most VR experiences are immersive and take up your entire view, you barely see the OS other than first time setting it up and then launching apps.

Would be nice if it was better, I don’t see it as a “huge downside” as you do though.

For the average user, not the enthusiast, they are going to be spending much more time proportionally interacting with the OS, because they spend much less time total per day using the device.