I feel the need to clarify the "without issue" part. I also can use 9+ hours a day on my A70 but the entire time I can see the pwm, etc. which is present on the Note. What this means for me is that it's functional but if I had a preference I would prefer DC dimming. I still have my concerns about subtle halos around text etc which is not present on my non-pentile older lcd displays, etc.
So I am using a device which I will keep until the next one but it isn't perfect and I don't think perfect exists anymore for anyone.
As of late and maybe this is something to do with oled but I have started noticing the "light" when watching video is harder and whiter. Almost like when you see soap opera on tv. It's lit harshly. Sort of like that. I prefer softer lighting. Maybe it is how it is being driven. Afaik nobody here has a DC-dimming oled unit.