It usually works. When it doesn't, it really doesn't though. And there's some annoying quirks: For instance, Edge always restores tabs after a crash, and you have to literally create nonexistent registry keys to disable that functionality.

The reason this is a problem is because when a malicious webpage hijacks your browser, and you have to forcibly close it to escape... Edge helpfully reopens the malicious webpage each time you relaunch Edge until you find out you need to hack on the registry to fix it.