I'm almost ashamed to admit how large of a reason wobbly windows working out of the box is for my continued preference for KDE in most cases. Does anyone know what the status of '00s desktop effects is on other common DEs? I'd guess it'd be easier to achieve on MATE than Cinnamon for example, though I've always liked Cinnamon.

There's a comment above saying that wobbly-windows is available as a gnome-shell extension.