My best guess is that you activated the “Remember me”-option:
To get 2FA back go to the settings of your browser, search for cookies and in that menu search for vault.bitwarden.com. Once you have found it delete Local storage.
My best guess is that you activated the “Remember me”-option:
To get 2FA back go to the settings of your browser, search for cookies and in that menu search for vault.bitwarden.com. Once you have found it delete Local storage.