Add Microsoft Edge Chromium to Patch My PC :)
Here's the link: https://www.microsoft.com/en-us/edge/business/download
I'm going to guess that when Microsoft finally fazes out it's own version of Edge (which should be fairly soon), it will update automatically or update with Windows Update regularly.
PMP is also used in locked environments, thus the reason it updates other browsers as well, though they auto-update too.