I am finding container tabs really helpful. One suggestion: Have a way from the command line to open a URL in a new container tab. This would be useful for opening a container tab from a password manager.
For example, KeePass all passwords intended for “Work” could be placed in a group, and {GROUP} placeholder could be replaced by “Work” and passed on the command line.
Containers are a powerful way to have different logins/security contexts without having to create separate profiles. I really hope they take off. Thanks to everyone working on them.