This MLiG video may provide some useful information, if you haven’t already seen it.
While I have no regrets about my TCL 49s405, with its low lag and excellent compatibility with all things that I throw at it, there is no denying that the OLED samples shown in the video are absolutely stunning. After looking that, colors on my TCL are frankly a bit flat. But again, for $300, I’ve got no complaints.
Hope that helps, just some food for your thoughts.