Real Multi-Monitor Implementation

[ToneyFoxxy]

Describe the idea

Would make VRR and DPI work correctly across multiple monitors, among other things

It should be done because

This seems to be the main reason (Aside from it being default) that people use Wayland. I have no idea how feasible this is for XLibre off the top of my head

Extra fields

• I have checked the existing New Ideas, RFCs Of The Core Team, Ideas Soon To Be Addressed and Someday Ideas
• I have read the Contributing Guidelines
• I'd like to work on this idea (If I had the skills necessary, which I currently do not)