The metaverse that wins will allow 18+ content.

Not Zuckerberg.

But there is no P in FAANG. And Steam/etc don’t make their living on adult games. And youtube has no porn on it.

I think the issue with winning it with adult content will remain unchanged, at least for a while. Porn is so classic, that it cannot tunnel through this potential barrier.

Google and Microsoft absolutely serve porn. "Safe search"? It's what Bing is known for.

People use their Apple devices for porn, controlling sex toys, and much more.

Amazon sells lube, sex toys, lingerie, and a whole host of other totally NSFW products.

Netflix has a ton of shows with nude actors bearing their breasts. Their show "Sex/Life" shows penises in a very sexual way.

Twitter, though admittedly not FAMNGA, notoriously allows and supports porn. They're very much the opposite of Tumblr, which died the moment they banned it.

Patreon thrives on porn.

Steam absolutely sells a whole bunch of porn. It may not be a majority, but it sells plenty.

Today. Since 2018. Steam itself launched in 2003, so literally took 15 years, and still in a very limited basis(IIUC).

And this is probably why facebook won't win.

And anonymity. See how many are active in VR community under their legal full real names. Some mention their IRL names on social profiles as footnotes, but if they did care, that person is not important in VR.