I think they mean they have windows open in different profiles (profiles, not containers), and want the last active one to pick up links from external apps...
I, for one, would like the last active container to be used.
I, for one, would like the last active container to be used.
If I relied on "last active" I would frequently get things opening up in the wrong place just because say, last time I was in a browser I happened to be in a my personal profile, and 30 minutes later, I click a link in work Slack.