This App Makes Installing GNOME Extensions MUCH Easier - OMG! Ubuntu
How To Install Pop Shell Window Tiling Extension On Ubuntu 20.04, 20.10 Or 21.04, Fedora 32, 33 Or 34, Debian Bullseye Or Sid, And Arch Linux Or Manjaro - Linux Uprising Blog
Gnome Shell Extensions not working. Troubleshoot says missing v6 API needs an update to "gnome-browser-connector", but Ubuntu (I'm assuming the closest to Pop OS) is using "chrome-gnome-shell" : r/pop_os
Transparent Top Bar (Adjustable transparency) - GNOME Shell Extensions