When I try to quick edit in texture paint I get an error saying that it couldn't find an image editor even though there is one (see photo)
You entered a link on your desktop.
Change the image editor to the executable
C:\Program Files\Krita (x64)\bin\krita.exe (or where you have installed Krita)
What you linked to is to a desktop shortcut (.ink), not the actual executable (.exe) which it needs to be.
I had a different issue when I got that error. For me, it had an issue with the parenthesis, so I simply renamed the
...\Krita (x64)\... to