Johnatan56
Honorary Master
Since 2017: https://blogs.windows.com/windowsde...g-high-dpi-experience-gdi-based-desktop-apps/There are a gazillion pages on the web covering this topic, it's a real thing. MS changed from rgb subpixel rendering to grayscale rendering to cater for phones & tablets which looks ok on small high dpi screens. This all started with Win8 which I skipped and it's very noticeable to a lot of people.
Here's some light reading to go over.
https://answers.microsoft.com/en-us...rry-text/f52a2002-d748-485c-8b9c-4862806ea94a
https://msfn.org/board/topic/174172-font-rendering-is-a-mess-in-windows-10/
https://www.neowin.net/forum/topic/1267300-was-the-win-8-font-rendering-issue-fixed-on-windows-10/
https://answers.microsoft.com/en-us...y/1d811744-2b48-44df-a20f-ed97c651b239?auth=1
https://ledstrain.org/d/47-anti-aliased-fonts-can-damage-eyesight-writeup/2
And I think in end of 2018 they started having Windows "guess" if needed. I haven't had scaling issues in a long while now. If you're still using legacy apps, you might run into an issue, but I haven't had a problem in a very long time.
If you're saying higher DPI screens have problems with sharpness, definitely not, the issue is low DPI main display and different size on others.
There was also an issue with Java based apps only respecting the ratio on the monitor that it was launched on, that got solved mid 2018 or so, IntelliJ had that issue.
Windows 7 was a lot worse in that regard. You can run ClearType on low dpi large screens, still works.

)