Zend certified PHP/Magento developer

How to assign a command to a “microsoft-edge” pseudo protocol on Windows 10 without using Microsoft Store

I am trying to get EdgeDeflector to work to stop Windows from randomly opening Edge for links that come with system dialogs. It’s enough that those links are usually useless and opened by accident, having to also wait for another browser to start is really annoying.

Unfortunately, the program no longer works out of the box. One needs to change the setting in “Default apps by protocol” to open microsoft-edge links in the EdgeDeflector. But that option is not there:

enter image description here

I am assuming there must be an associated registry entry? Where can I change this to an arbitrary program?