> Super left right up down. Literally the most logical, and what's used everywhere.

It's used everywhere and it's completely undiscoverable. Both are true at the same time.

> And just grabbing and "squeezing" it onto the target edge works, for longer than on the other two major desktops.

Good, that's another option. Now, the only thing missing is the default option that's been in use on computers for over 30 years, namely maximise and minimise buttons.