Please tell us some basic information before asking for help:
Model Name: ZE620KL
Firmware Version: latest Android 10
Rooted or not:
Frequency of Occurrence:
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
It seems I can't find a way to change display scaling of each apps in the new Android 10. How do I change it?