YouTube is probably one of the parts of the internet I consume the most, so I was more than a little sad when YouTube announced that they don’t have plans to build a visionOS app, and disabled the option to load the iPad app. This leaves you with Safari, and the website is okay, but definitely doesn...
Since a lot of people will come to the comments without reading the article itself:
It is embedding the Youtube video, like a lot of websites and apps do - if you ever watched a youtube video outside of youtube.com or official apps, odds are it is using the same API as that app.
It still shows ads and uses the Youtube website directly for certain parts, but with some custom CSS and JS akin to how browser extensions would work.
It’s ok in this case, since it is only an alternative web view and videos are loaded, like on the website, with ads, except, if you have premium, of course.
For ad block, I guess, you have to use an extension for safari, which I don’t know if they are supported on vision safari.