Edge comes with a paid OS, right? So in a sense, you did buy it.
Windows update? That's gonna cost you an hour. Update got botched? 2 hours, and all of your browser settings. Registry corrupted?!? 3 hours for backup and reinstall! Can't figure out how to change a setting, because the option used to be there, then disappeared in the last update? 1 hour searching SO, 1 hour crying.
However it’s your choice in this day and age to use windows.