What's the best way to use Sumatra in multi monitors with different DPI scalings?

[WillingAC]

Background: Recently I switched from MacBook Pro back to Windows laptop, and use my favorite Windows PDF reader, Sumatra, again. The Windows 11 Laptop built-in monitor scales DPI to 150%, and keeps the external monitor DPI 100%.
Issue: As long as Sumatra is launched when the built-in monitor is open, it uses 150% scale no matter in which monitor it was launched. Only in "Second Monitor only" monitor mode will Sumatra use the external monitor's DPI.

I know Sumatra cann't adjust DPI scaling when switching between monitors by design now. But how to let Sumatra properly use external monitor's DPI scaling while in "Extend" monitor mode?

[harryxxiang]

Have you managed to find a solution to this issue? The scaling for ui elements on my higher resolution screen with a different dpi makes all the ui elements tiny.