They are not. I can't count how often the gnome shell extensions broke with each new minor version.
Wayland, XServer, Firefox, Gtk and QT patches were merged in 2021 already: https://bill.harding.blog/2021/06/06/linux-touchpad-like-mac...
But while running a current Debian unstable with Mate desktop, I don't know in which applications I could test the gestures, neither do I know which gestures are supported
I reverse engineered the API, documented it and built a re-implementation that makes the OUYAs fully working again: http://ouya.cweiske.de/
They are not. I can't count how often the gnome shell extensions broke with each new minor version.