Current-era Microsoft continuing to push the boundaries of consent.
Microsoft Edge is a good browser but for some reason Microsoft keeps trying to shove it down everyone’s throat and make it more difficult to use rivals like Chrome or Firefox. Microsoft has now started notifying IT admins that it will force Outlook and Teams to ignore the default web browser on Windows and open links in Microsoft Edge instead.
Microsoft started notifying people about this month ago. TBH the outlook client is still god awful so most people will only use it in an work environment where edge is the default browser anyway. Also it can be changed to other browsers. The how is mentioned in the FAQ.
Edge is not the default in work environments. My old company was a MS shop and they still were forcing everyone to use Chrome because - of all things - MS Dynamics 365 web interface was buggy in other browsers (including Edge)...