Could Pixel Density be the issue for Macs?

wlmsn

I stumbled on something interesting this morning… this guy says that MacOS is designed to be seen at 218 PPI and anything other than that will affect it causing "Shimmer". He gives a good example in the 2016 article (here) but also another in the updated 2022 article (here). He also notes that Apple laptops use a different PPI (227PPI and 254PPI at the time of the article) for more space, but it produces inaccurate picture.

This Shimmer is exactly what my issue was initially when I got my M1 air (and later M2 Air and M2 mini with different monitors that were likely not 218PPI)

Has anyone ever looked into this to see if exactly 218 PPI helps with our issues?

Here's the articles:

Initial 2016 Article: https://bjango.com/articles/macexternaldisplays/

2022 Follow Up: https://bjango.com/articles/macexternaldisplays2/

Sunspark

Good writeups, and also scaling from "Default" needs to be considered as well. There was a writeup for this as well.

wlmsn

So I got curious and I looked up the native pixel density for iOS.

According to this site it is:

regular: 163 ppi.
retina: 326 ppi.
super retina: 489 ppi.

Interestingly iPhone SE, iPhone 11 and iPhone 8 and lower all have PPI of 326, while the newer iPhones (13+) all seem to be around 460 PPI (as opposed to 489 PPI) according to this site.

Also interesting is the iPhone 13 mini has a PPI of 476, the closest of the new phones to 489, which maybe explains why some people can use that one?

That all said, I'm WAY above my head with this stuff so maybe it's all a big coincidence, but I thought it was interesting.