I actually tried it in Chrome on MacOS before writing my comment, and did not see the Install button, but only the tiny install hint in the url bar. That surpri

I actually tried it in Chrome on MacOS before writing my comment, and did not see the Install button, but only the tiny install hint in the url bar. That surprised me, because I clearly remembered the button; which is why I thought that maybe the button only appears on mobile browsers where it's harder to find the install option in browser's own ui. But now when I open it again in desktop Chrome, there it is, the Install button. Strange.