Dear all,
I use Bitwarden desktop app on Mac OS Big Sur 11.6.2. I’ve just noticed that the top menu bar is no more visible, that means preferences are no more available either… I don’t know which version I’m using, because unable to access preferences 
I’v tried to uninstall / reinstall the app without success…
Just no idea what this happens…
Hey @BHuck74 I’m able to see it on my end, but you can open a ticket with the support team at Get in Touch | Bitwarden for additional assistance if you don’t get any replies here.
Thank you so much @bw-admin for you prompt answer.
Actually it works but I need to click on the Bitwarden icon in the menu bar to make the menu reappear 
I discovered that by chance. Looks like a little bug but the workaround is fine
Cheers,
It sounds like you have an app in full screen mode.