Does the touchpad support gestures and does any driver exist for it? That's the biggest thing keeping me on macOS

It does support gestures. Gnome and KDE use libinput these days which has support for 3-finger, 4-finger gestures (Both have some gestures enabled by default when using wayland)

yes, it supports what Microsoft calls enhanced gestures.

But don't kid yourself, apple's touchpad implementation still reigns

forgot to mention, the 16gb and core i7 version is mandatory