Thanks for your response :).
Okay since 48" is way to big for me as Monitor I guess I gonna stick with 2 Sepperate Monitors or a Monitor and a TV, I gonna look into that with the information you kindly provided in this tutorial.
Last question if I may.
If you talk about "Habitual changes necessarry to look after an OLED" doesn't that basically just mean I have to prepare for screen burn in? So basically I'd make "Habitual changes" by installing a sort of screen saver (uhh, oldschool) or just simply turning my Monitor/TV Off while not using it?