Works great in combination with multi-account + temporary containers extensions.

Grants the ability to regex match on domains & url paths for sites that do auth redirects or to isolate corporate & personal accounts on the same domain (github, google etc) - MAC should have this functionality built in, and there are several open issues requesting it.

Containerise does have builtin limited temporary container functionality, but I found the separate extension to have more useful configuration options for how temp containers are handled