Samsung Q7FN calibration + OLED question

[MOS3]

Hello wise people from the forum, wanted to ask if you can recommend a good calibration site (or setting) for a Samsung Q7FN model (it's a QLED). Unfortunatelly there's no professional calibration service where I live and I've tried some websites including rtings.com and all of them seem to always recommend using Warm 1 or Warm 2 in the color temperature settings (I believe that's what it's called). Is that correct? Everything seems so yellow with that. I always use normal instead.

Also, when I bought this TV I was not sure if I should get this model or an OLED. I read that OLEDs are better in PQ, but they tend to burn in static images or something like that. Don't know if that happened to older models or is something that still affects them. I'm asking because even though I love my current tv, it has an issue with local dimming where all subtitles will change the screen brightness and there's no way to turn that off. It gets really distracting on dark scenes, to the point where I just don't use subtitles anymore because of that so I'm considering changing my current tv and getting a new one (not Samsung, not going to risk having that issue again) and OLED is very tempting but I'm sort of scare it might get that burn in.

Hope you guys can help