I use kde and I usually put this line in /etc/environment to enable wayland “MOZ_ENABLE_WAYLAND=1”, and you can check that you are using it and not the adapter

I use kde and I usually put this line in /etc/environment to enable wayland “MOZ_ENABLE_WAYLAND=1”, and you can check that you are using it and not the adapter by going to about:support and search for wayland, it should be “wayland” and not “xwayland”. It improves the performance especially for video playback and such, but also enables the toch pad gestures in some laptops and zoom in/out.