Hi,
Thank you for writing to Microsoft Community Forums.
I understand your query related to changing the setting for High DPI scaling for multiple apps.
Currently, Windows 10 doesn’t have the option to enable the High DPI scaling for multiple apps at once. I understand your requirements as this can be important for you. I would encourage you to provide a feedback using the Feedback Hub app on Windows 10, so that our engineering team can look into this for you.
Regards,
Prakhar Khare
Microsoft Community – Moderator