Also, just to offer another perspective, I have yet to see any screen reader "hijack" the vast majority of Windows keyboard commands, and absolutely none have ever touched Copy (CTRL+C), Cut (CTRL+X), or Paste (CTRL+V).
They very seldom "hijack" program keyboard shortcuts, either.
Brian - Windows 10 Home, 64-Bit, Version 1809, Build 17763
A great deal of intelligence can be invested in ignorance when the need for illusion is deep.
~ Saul Bellow, To Jerusalem and Back