I actually managed to excise Edge from my system entirely, so pressing F1 in explorer doesn't launch it anymore.
Dsspite some people warning that Edge was needed for some "core web functionality" it has broken nothing except the handful of places where they want to force you to launch a link in Edge. In that case nothing happens, but that's not a big deal since I know how to use search engines to find information, which is the only purpose those features served.
It took quite a few steps but I got there. There are a few extra steps to stop it coming back in the next update but you can do it.