If you have a modern laptop, you must be having a touchpad with multitouch capability, in hardware. But on the software front, it must be crap.
And if you’ve always craved for having support for those multitouch gestures, you must have been following the X/Wayland development.
From what I’ve known so far, libinput is the successor to all older input support in X/Wayland. But it does have some conditions at this time. Like: Multitouch Gesture is only available in Wayland, not in X. Similarly, if you use GNOME/Wayland , not all RandR functionalities are available in Wayland, that are there in X.
So if you’ll still be using X for some time, and want Touchpad Gestures, you may consider looking at: https://github.com/bulletmark/libinput-gestures
For Debian, this still needs to fixed before you can use. But if you read till here, you know your way.