I haven't got to use VR much, since my apartment is too small for it, but I have played a few rounds of VR racketball.
I have no interest in VR videoconferencing, but shared presence is surprisingly interesting. When you've both got headsets and headphones on, you can't tell the difference from playing in the same room as your friend, even if you're physically hours from one another.
Big screen has the most toxic online community I have ever interacted with. I know there is worse out there but the amount of anti-LGBTQ chat I hear was disturbing for a place that is about watching movies.
Yeah, I wouldn't wade into anything public there - stick to private rooms with your friends. The moment you go into any sort of "I want to meet strangers" in VR setting you're really rolling the dice. I briefly hopped into the "shared lobby" for Big Screen at one point and encountered probably 3 or 4 negative internet stereotypes immediate (14 year old yelling obscenities, someone trying to hump my face, and someone just blasting noise so loud through their mic it was painful). Very much something you would only want to experience with trusted parties.
We've been doing this since the pandemic started and it's the #1 way I stay in touch with a bunch of friends now. It's also ruined real life movie theaters for me since I'm used to being able to talk with friends while watching. We'll actively wait for a movie to hit streaming before "seeing it in the theaters" with each other.
All of this was already possible with the Quest 2, but I'm interested to see how the quest 3 can further make those hangouts feel closer to the real thing.