In some instances, Microsoft Edge will report the Fenix Installer as untrusted, here is how to continue the download.
You must turn off Microsoft Edge SmartScreen temporarily.
To turn SmartScreen on or off in Microsoft Edge:
Select Settings and more > Settings > Privacy, search, and services .
Under Services, turn Microsoft Defender SmartScreen on or off.
Once your download has completed, immediately restore this setting.
You may need to do these steps again in the event you need to download an update.