Gnome 47 has been a bit rough for me so far. Firefox is really buggy with mutter47.beta, the resizing is super laggy. But that's the only major thing bothering me.
Edit: The Firefox bug was fixed with a fresh reinstall. Not sure if an update would have fixed it because I tested that new bootupd feature which caused GRUB to break.
I experienced similar resizing issues with 47 and Flatpak Firefox, but in my case I was forcing FF to use Xwayland to accommodate my password manager. Once I enabled Wayland support in Flatseal, performance was back to normal.
Seems frivolous, but I see the purpose from a multi-monitor panorama wallpaper aspect. I wonder how hard it would be to write a shell extension to do this.