With a tiling manager like FancyWM, every window finds its place automatically. Once it's running, you can open two apps, and they'll each take half the screen. Open more, and they'll keep arranging ...

I have a lg c2 tv as my main pc display via hdmi...then I have a msi monitor via display port as my 2nd monitor. The lg c2 is always shown as monitor 2 and the msi as monitor 1. I think it's a hdmi ...