Sounds beautiful. However, I have a 17" MSI laptop with a 4k screen that I run at 1080p because some things (dialogs) are so tiny they are unreadable. 4k may be great for gaming but many of the dialogs can't be scaled.
Yea OLED does still have burn in issues, but not as bad. They did a test for burn in for 2017 TVs and only the one playing CNN 24/7 had any major issues.
However this is Samsung, so it's probably more like a phone screen than a TV screen.
What's the subpixel arrangement? Samsung's typical 2-colrs-per-pixel pentile looks pretty horrible when the PPI is below 400... Unless you like it when straight lines and text look like a stacks of jagged fuzzy diamonds.
I wouldn't want to waste all that GPU power on inferior pixels