https://hardforum.com/threads/occasional-flicker-on-the-benq-pd3200u-and-others-w-auo-panels-bad-for-it-will-it-get-worse.1950627/
Seems like a similar problem.
Do you think Samsung is using B-grade panels too in their TVs that use AUO and not their own panels?
Edit: I saw you have tested a lot of TVs lately. How often do you had dead pixels?
We will get 8K TV-s later this year. AUO will start making 8k panels this year.
https://www.anandtech.com/show/12458/auo-to-ship-8k-uhd-tv-panels-in-coming-months
OLED is overrated anyway. I have a phone with OLED screen and it isn't that impressive at all. OLED has more dead pixel problems, burn in and are overpriced. IPS is still very good and cheap technology. Only thing that OLED does better is contrast, but all other things are almost same as IPS.