Any of the three will cause a new and separate window to open.
The first is in the File Menu…
The second is in the Tabs Context Menu…
And the third is the Context Menu for your bookmarks.
AfterAs you open each window you will need to login with the appropriate credentials.
You will also notice a blue square with a number at the end of the Address Bar.
you could see here that the numbering starts at 2…1 is considered as the originating window.
The separate windows help maintain the separate identities.
