Wah this works great on Linux, thank you so so so much!!
I'm on Cinnamon (using the AppImage version), and they walk and climb along the edges of the screen, but seem to ignore any open windows completely. Which is a bit of a shame, but it's still really nice that it works at all...!
From what I'm reading in the comments and the github issues / readme, I guess it's only Gnome and KDE Plasma for now?