Earlier quoted context omitted.
Touchpad gestures for Linux apps are being worked on: - Latest update (December 2021): https://www.gitclear.com/blog/linux_touchpad_update_december... - HN: https://news.ycombinator.com/item?id=29555822 So far, pinch-to-zoom has been implemented in Firefox. (If you are using X11 instead of Wayland, then the environment variable MOZ_USE_XINPUT2=1 needs to be set.) Gestures for back/forward navigation have not been imp…
What I don't quite get is why this needs a project; it just needs configuration options; for example, two-finger swipes currently map to mouse buttons (buttons 6 and 7 for left/right swiping) which most apps interpret as scrolling (in every direction). I'm about to write a script to remap those to browser back and browser forward actions (after a delay to prevent repeated actions), but I'm so surprised it's not baked…
In Windows and Linux clicking the trackpad with 3 fingers causes a middle click, in MacOS this is not an option at all. Moreover, enabling it is apparently a project so difficult that the cheapest solution[0] I could find costs €8 just to add middle click functionality, nothing else.