I bought a quest 2 a few years ago. I searched for hours and hours to try and get it to work with no FB account. Best I found was that you can sideload APKs to it… with a Facebook account.
Eventually broke down and temporarily made a Facebook account to at least try it. Was pretty unimpressed with the content which was meager in comparison to PCVR. Ended up returning it and deleting Facebook account.
In my opinion the experience is not worth making a Facebook account for even if the headset was free.
If you want to get into VR on the cheap get a windows mixed reality headset off eBay. Most of them aren’t as good of a headset as the quest 2. But it will probably be comparable if you’re streaming most of your content from PC anyway. And you’ll avoid Facebook’s shit.
Be forewarned though windows mixed reality headsets don’t yet work on windows LTSC or Linux :(. (Though maybe windows 11 LTSC later this year?) So you’ll have to use the garbage version of windows to use it.