It's probably not a case for everyone due to the obvious limitations, but I primarily use KeepassXC from my main workstation. I have backup scripts that periodically run for my user on said workstation that capture my Keepass database among other user files and backup to external storage, cloud storage as dictated.

For my laptops, mobile devices; I periodically push the database from either the main workstation or pull from a backup to these devices. I do not write new entries from these devices in order to avoid having to handle writeback to the main instance of my Keepass db. This can be done, but inherently starts to hinge on needing network access all the time to ensure an up-to-date copy of the DB is present as well as being explicitly a single-user db to prevent a syncing protocol from accidentally writing over new entries from any given device. Obviously, if network sync and the potential for multi-user is important to you, continue using Bitwarden. It is a perfectly fine solution.