I just rediscovered #BumpTop, an alternative 3D desktop for Windows 7 that had a major focus on Touch gestures and was eventually bought out by Google.
I remember using it on my first Windows 7 machine even though my laptop could barely handle it.
https://www.youtube.com/watch?v=Fko4N-EmzgM&t=837s
It's #OpenSource now, but I'm still waiting for a Linux port.