The display the author doesn't like is a specific model Dell QD-OLED with a sub pixel arrangement that causes a fringe above / below text.
There are macro screenshots that reveal the sub pixel details of a preferred LCD compared the disliked Dell OLED, and it's easy to agree with the author's discontentment.
But the categorical complaint about "OLED" is an over generalization.
Treat the report as a warning to investigate the sub pixel characteristics of any monitor you may be considering.
The display the author doesn't like is a specific model Dell QD-OLED with a sub pixel arrangement that causes a fringe above / below text.
There are macro screenshots that reveal the sub pixel details of a preferred LCD compared the disliked Dell OLED, and it's easy to agree with the author's discontentment.
But the categorical complaint about "OLED" is an over generalization.
Treat the report as a warning to investigate the sub pixel characteristics of any monitor you may be considering.