You don’t have to use Gnome on Cachy or Fedora. Fedora has spins for nearly every DE, and Cachy also has an option for nearly every DE on install.

That’s nice, although somewhat different than what OP linked. I think the filter you linked will completely remove shorts, where the extension OP linked (Youtube Shorts Block) will instead convert shorts into a normal video, despite the misleading name. Although I think the extension has an option to completely block shorts too