I've been wanting a feature like this since the early 2000s and yet no one, not the device makers or their software...

I've been wanting a feature like this since the early 2000s and yet no one, not the device makers or their software developers, have tried to implement such a system. Google came close with Android and the instant synching it does between devices, but I want my device mirrored on my desktop, not just synching. Hopefully this plays well.
https://www.theverge.com/2018/5/7/17325452/microsoft-windows-10-laptop-phone-mirror-ios-iphone-android-build-2018