Considering my old phones get burn-in after a year or two, that windows has far more static elements than Android, and that I don't replace my laptop every year, oled would be a horrible choice for me.
Though I mostly find max brightness to be uncomfortably bright, so I usually keep it down in the 10-30% range (auto).
My gf likes to illuminate half the block with her phone though, and we both got the S8 at the same time, so will be interesting to compare.
Android has a status bar at the top that's displayed over most applications. And applications on Android are far more likely to be maximized, which makes the common design elements and widgets more likely to be in the same place.
To the best of my knowledge and research, though, the current generation of OLED screens and controllers manage to avoid image retention.
Do you happen to have your brightness set to really low or something? I left mine around the default thinking it'd be safe but that totally didn't work out.
I have an OLED TV for watching shows and movies and try to be careful to not display static elements for too long. I would never use an OLED as a PC screen for fear of burn-in.
I've had an OLED phone since the original Galaxy Note and an OLED tv for 15 months now and I'm never going back to LCD.
As I understand it, plasma displays (which now seem defunct?) had issues with burn-in if presented with the same image for a long period of time during a single instance, while from personal experience AMOLED burn-in can occur even if the same image is displayed repeatedly over a long period of time. Screen savers would appear to mitigate the former, but not completely avoid the latter.
If the Windows taskbar is present 95% of the time that the computer is being used (with the other 5% being fullscreen applications), and a screensaver is active 40% of the time the screen is on, then the taskbar is still visible for 57% of the time the screen is on.
Maybe the tech has changed, but as of my first OLED phone 7 years ago, blue (the same color as the taskbar's Windows icon) was the fastest color to burn in.
Newer phones shift the navbar and status bar items a few pixels every minute. But the start menu icon is too big for that, so after a year or two, every time the user watched a movie in fullscreen, they would get a blue blob in the lower left corner.
You should just turn off the screen when you are away