Could it be that Bitwarden inadvertently created an “unlisted” archive area just like we are all hoping for? Does anyone think this “feature” could be used in this way as yet another workaround?
They announced this in a recent “Action needed” communication
Hello Bitwarden organization admins and owners!
As part of an update that brings greater flexibility to your collections, items that do not belong to a collection are no longer displayed and accessible in the All vaults view across devices. They can be found in the Admin Console in the Bitwarden web app under the Unassigned category in Collections.
To make these items visible and accessible across all Bitwarden clients and apps, they must be assigned to a collection.