> Is there a difference between dpi support for third party apps versus Microsoft apps? Yes, there is. The only app that I am using that seems to be able to h

> Is there a difference between dpi support for third party apps versus Microsoft apps? Yes, there is. The only app that I am using that seems to be able to handle high DPI and DPI changes during runtime is Firefox. Most of the third-party apps that I used (not that many of them) either do not support high DPI at all (and are scaled by the OS), or fully support high DPI mode (with changing DPI during life of the app). So all of them work in more or less predictable manner. The worst are non-modern applications by Microsoft. They behave randomly, sometimes only parts of application get scaled. The worst offender is MS Office, each app of the suite has it's own high DPI related quirks (Outlooks gets blury, PowerPoint's UI becomes huge). Also the task bar icons do not expect DPI to be changed during their lifetime :/