FYI, using just the Windows key by itself (instead of win-r) lets you search through executables and such via the built-in indexed search. It is more forgiving than win-r (which is just a command window, and requires you to know the exact name of the executable). It's basically like the macOS Searchlight or Spotlight or whatever it's called.

But yeah, windows key, (let go), start typing anything = you never have to move the mouse. Windows is MUCH more keyboard-friendly than macOS, about on par with Linux.