Well, if that's "normal for OLED", then I don't want a "normal OLED" screen thanks.
The issues of burn-in are something that's literally NEVER affected modern hardware I've used (and even then, only on one ANCIENT monitor I have got some burn-in after 2-weeks of showing a bright logo, and even that's cleared now... [checks monitor he's using... yep... gone]).
Honestly, if "the best tech" involves screen-burn-in if I'm not careful, I'll have last year's screen tech with this year's processor, etc. please.
Otherwise forget it. We're supposed to be PROGRESSING here, with expensive devices sold to consumers, not beta-testing for OLED manufacturers.