And Phantom wallet integrates them on X: https://x.com/phantom/status/1805588661213220968

Now this is great UX

Yes, although this will probably only work when you visit x.com on Phantom or if you have Phantom installed on your Desktop browser.

Yeah of course, its extension is adding something on the website you're visiting. This is brilliant, I wonder why metamask didn't think of that, since it is installed by millions of users

Yeah but for this to work on mobile one has to log in and browse X on the phone, which is pretty strange.

On mobile it's less smooth but still better than the MM experience where you go back and forth between MM and the website a few times. I suppose you can go straight from X app to Phantom wallet.

And by the way I am using X as a PWA, it's working great! Plus I don't get any ads courtesy of Brave.

Yeah fair, but now you make me think we‘re talking about something entirely different, namely that wallets are making themselves more available in the HTML of web pages, which was also something that has been tried, but never seen through. For example, the Dawn Wallet team had wanted to launch HTML+