1. Linux
  2. TempleOS
  3. Mac
  4. Intel Management Engine
  5. W.*

EDIT: I’ll add any system that gets at least five votes in the comments. Let’s roll.

  • They objectively are. If you hide the dock there is zero onscreen glanceable indicator to tell you what windows and apps are running, and full screen makes external monitors go black and be unusable until you exit.

        • Is it the application you’re using? Something bugged on your system? Is it an older system where maybe that was a shortcoming?

          I pulled up my Mac which I use to use with multiple monitors many times and tested again to ensure I wasn’t crazy and nope. I can have two different full screen apps open at the same time, one on each monitor.

          Or a full screen on one, and the other just showing windowed applications with my dock visible.