This command creates a registry entry that prevents Edge from running. It redirects output of msedge.exe to rundll32 (which does nothing).

The command is all one line. It'll work with any .exe

reg add "hklm\software\microsoft\windows nt\currentversion\image file execution options\msedge.exe" /v Debugger /d rundll32

I've been using MSEdgeRedirect for years. It intercepts calls to Edge and sends them to whatever browser you want. It's for when Windows ignores your default browser and opens Edge w/o your consent.

https://github.com/rcmaehl/MSEdgeRedirect