Win - Tab for the overview, you can then add virtual desktops in the top row. switching between them with Ctrl-Win-L/R-Arrow.
Works the same on the current KDE :-)
I have bound the switching to modifierkey (on the mouse)-Mousewheel L/R, so i can switch desktops with the mouse only :-)
Now if Windows and KDE would just remember which programs belong on which desktop, that would be nice.

I somehow always manage to fuck this up and flip my screen orientation, because I am a dumb.

What's a windows key? Proper keyboards have modifier keys named shift, ctrl, meta, super and hyper.

I worked with this kid born in the year 2000 for about 11 months. He was in very loose terms "IT", when he was typing ont he keyboard hed always hit the caps lock to type something in upper case, and when I questioned him on why he did that he responded "what do you do? Hold shift?" In a tome that implied I was somehow the weird one. He also had trouble typinh any symbols on the number row and had to be told to hold shift.

Believe it or not this incompetent IT guy was fired for his incompetence in IT (and shitty people skills)

I use Win+X, Win+E, and Win+R literally everyday.