Since Delphi 10.3.3, my form on a MacBook Pro with High Sierra is somehow zoomed. This does not happen when compiling with 10.3.2, and does not happen on a normal iMac with High Sierra or catalina. This is a 64 bit application.
More and more of my customer complaining about this bug. All are using MacBook pro with High Sierra, if that matter. Once they upgrade to Catalina, all is normal. But I cant force them to update their OS because Embarcadero cannot get their things right... this sucks.
I have used the solution suggested in RSP-27197 and it works. So until Embarcadero releases a fix, you can make your customers happy this way :-)