Multiple screen RDP support. It is the only thing keeping me on Windows for my personal desktop. I RDP into my work laptop from my desktop so I can have all 4 of my monitors, but keep my systems separate.

~~Validate Epic James's greediness~~ Run Fortnite or Valorant.

Have the Year of the Windows Desktop.

Linux lacks GUI configuration tools for many things, you have to edit text files often using guidance for obsolete versions of software and hope it works. Every single config file can have thousands of lines and if you wrote something wrong it will crash or start acting weirdly, very fragile design. GUI config tools mostly allow valid inputs like checkbox true/false and complain if the path isn't valid.

Edit: to clarify, i'm exclusively using linux since 2008 and i'm not 'afraid of editing config files', downvoting me doesn't fix the problem. I'm also not fond of fixing your header files for them to compile.

Take hours to update every 2nd Tuesday. Run like squat on old/low end hardware. Require an add blocker to stay safe.