Gnome shell seems to offer pretty decent window "tiling" in that dragging the window either up, down, left, or right does something smart!

Dragging left or right, tile left or right respectively. Dragging up maximizes, and dragging back down pops the window back to a "normal floating window".

I also learned that the <windows-key>+arrow direction do the same things-- almost. Left, right and up all work as expected and match the drag behaviours described above.

Given a normal floating window, using <windows-key>+up followed by <windows-key>+down brings the window back to normal floating state. However, if you do <windows-key>+left followed by <windows-key>+up, then a release, then a <windows-key>+down will not bring the window back to normal. It should. The mouse dragging behaviour is the only way to do this.

This is 100% reproducible.

Thanks for working on this papercut!

James