It's a weird choice, yeah. I have to do most of my university work on Windows anyway so I'm not too worried about the telemetry.
Edge is the closest to a cross-platform "it just works" experience I've had. All bookmarks sync between my android phone, windows and Debian. Plus I don't have to keep messing with the about:config after a clean install to disable whatever new UI features or services Mozilla has introduced in the latest Firefox update.
My only complaint is that Edge doesn't always respect my choice of search engine, for example the new tab search field at least used to redirect everything to Bing. But these can be worked around for now with relatively little effort.