I don't get the anger, at this point Edge is interchangeable with Chrome. The only thing I "miss" are my saved password and extensions which can be easily imported. Complaining online is an international pastime though.
It's not about the quality of the browser. The user has a setting to choose which browser to use, and they are disregarding it for their own convenience. It's anti-consumer and anti-competitive.
My daily driver is Firefox but I also have Chrome open (for Google products) and Vivaldi for personal surfing. Easy switch considering I'm already juggling browsers.
20 years ago this was a problem you could blame exclusively on MS. These days, they'd be negligent not to leverage their platforms to promote other products because the competition (Google/Apple) does so on a similar level.