All the Plasma desktop gestures are broken on x11, and if memory serves it's the same situation on GNOME. I spent a long time on x11 trying to get it to work (via Touchegg et. al) but eventually left for Wayland where it worked out-of-box.
And to be fair, some gestures do work on x11. 2-finger trackpad scrolling isn't precise but it works, and Chromium/Firefox both seem to work with libinput-gestures. The situation is completely different for native applications and desktops though (unfortunately). On Wayland, gestures work like they do on MacOS and Windows. On x11 they work like they did in Compiz.
And to be fair, some gestures do work on x11. 2-finger trackpad scrolling isn't precise but it works, and Chromium/Firefox both seem to work with libinput-gestures. The situation is completely different for native applications and desktops though (unfortunately). On Wayland, gestures work like they do on MacOS and Windows. On x11 they work like they did in Compiz.