That is not why Betamax failed. There was porn on beta. Betamax failed because the cassettes didn’t hold as much tape as VHS and JVC’s licensing model for recorders was cheaper and more straightforward than Sony’s. In the rental market, the format with slightly less friction was a bit more popular each year, which sealed the deal by the mid-80s.

Plus, when Beta made alterations to fit more on a tape (extended play modes to use the VHS term), the quality dropped to close to VHS levels, so the advantage was gone.

Even then, VHS could do the same thing, drop quality more, and fit EVEN MORE on a tape.

It seems pretty clear to me, ignoring licensing which was a huge issue, that beta was designed for recording TV shows while VHS also had movies in mind.

VHS didn't have manufacturer-controlled content purchasing.

The other major VR device manufacturers have a similar approach; you get the apps and content through their stores. Sony, Facebook, Google, etc. are all similarly unlikely to have official porn support; Steam is perhaps the most likely (as they permit at least some adult gaming on their store).

I suspect you'll see plenty of porn apps in jailbreak / sideload world. Quest already has 'em that way.

We still don’t know whether or not there is an official side loading story (ala Mac) or if it’s locked down (ala iOS, though I think that’s odds favorite).

What's the chances the iPhone will end up like Betamax? It doesn't offer porn apps, after all

I agree. It’s been 16 years. Clearly failed like Beta.

Safari visits Pornhub just fine. The question is if video playing will support side-by-side video for 3D in the browser.

Since webxr is confirmed to be supported, and u can do 3d video with it, it’d be extremely unlikely they would restrict that

Higher than zero, its market share is much lower than Android.