Windows 11 has a news & weather popup widget that sits down by the clock, in which you can click on the live tiles shown to take you to more info on the web. This widget uses microsoft-edge:// URI scheme so Edge is ALWAYS invoked.
Mozilla tried to hack their way around it, and it's been a few weeks of cat and mouse on it. At the moment, MS are winning.
It's like they've totally forgotten the events of the IE anti-trust stuff.