Interesting. I tried both Firefox and Chrome on Android, neither worked without the desktop mode enabled. In that case my guess is that the screen size or the resolution of our mobile devices plays a role.

I did notice more Google widgets not working on mobile, such as the current "ethereum merge" search, wich is supposed to show a countdown timer (which can not be fixed with the desktop mode btw).

I had success with Kiwi Browser, Chrome, Edge and Firefox for Android on a Pixel 4 running Android 13.