@RustyCrab @zero ips LCD panels are not that good for competitive type gaming. Amazing color and viewing angles, and usually better contrast too in my experience. Just bad latency. You notice it less if it is high refresh rate. TN is superior latency, VA is a good mix of both. IPS panels are about to get a lot better because of Nvidia's upcoming Pulsar tech.
OLED is superior in pretty much every way to all of these except for the VRR flickering. Burn in is a non issue now really.
You've probably done this already but make sure your monitor is set to use full dynamic range (0-255) instead of limited (16-235). Might help with your black levels there. Also, disable hdr in games because there is a pretty high likelihood your monitor doesn't have great hdr support and it'll just leave the image looking super washed out.
@RustyCrab @zero oh, maybe it could be an issue with hdr being too bright for them, so that leads to burn in. I don't think the switch oled has hdr support at all so that would make sense.