Yeah - if you need to enlarge the image to see the problem then it's probably not a problem unless you plan on climbing on the desk and doing A/B display comparisons with a jeweller's loupe.Edit If you ever read this article, yes it's correct. But even though I am a designer and do professionally UI/UX work, I would never ever get bothered with the issue that's mentioned on the article.
...and, anyway, switching screen mode to suit whatever task you're doing takes seconds, GPU load is a minor issue on an M1 or a discrete GPU and battery consumption is irrelevant unless you're plan on powering your 27" display with foot pedals...