What do these flags to exactly? [XPS and GDI printing]
I found these information so far https://mspoweruser.com/google-chrome-uses-xps-print-api/ https://docs.microsoft.com/en-us/windows/win32/printdocs/about-xps-print-api https://docs.microsoft.com/en-us/windows/win32/printdocs/gdi-printing but I can see no difference in Edge insider latest version with those flags enabled and disabled Version 81.0.375.0 (Official build) canary (64-bit)
