You just need a meta account, no need for facebook.
If you've never tried VR, don't assume you know what you'll enjoy
. I've never really enjoyed battle royales or FPS games that much, but in VR I'm loving a left for dead type game and enjoyed a basic battle royale (the main one is going free soon). Walkabout mini golf, playing with the guys here, is an absolute blast, social gaming in VR is something very different indeed, you can see people moving, nodding, dropping their head after missing an easy shot etc. The social aspect is really something else. Even in Rec Room (really simple graphics), it's a ton of fun doing the quests etc with a team. Really enjoyed Real VR fishing too, chilling in a beautiful environment with random people from around the world, just chatting etc, looking at each others catches.
If you had a ps5, I'd have said psvr2. As you don't, second hand q2 is such a good way to dip your toe in. Lots of the games are cheap or free. Then you can easily know if VR is even for you, and if it is, consider your next step.