There are several known problems with audio and video which Microsoft is still working on. There may be more issues that they haven’t found yet, of course. See https://docs.microsoft.com/en-gb/windows/release-information/status-windows-10-2004
I don’t understand why “your computers other functions will start screwing up” if you install this update, but | guess you have two options: don’t use Dorico, or don’t use those other functions.
Personally, I never install these major updates until they have been available for several months. There’s no value in becoming a Microsoft beta tester if you just want a PC that works!