I'm not so sure that's true. The mitigations they're doing seems to work very well for all sorts of form factors. I've been using a dell UP3017Q OLED monitor as my main display for most of last year and haven't had any issues so far whatsoever. It's simply the best display I've ever used. Even for my LG OLED tv, which I've had for a couple of years hasn't exhibited any image retention issues at all, despite watching a lot of news with scrolling headlines and logos. I wish OLED monitors would become more generally available since they're far, far superior to LCDs but for some reason apart from a limited run of the Dells and some short lived laptop models they're pretty much nonexistent.