I self host vaultwarden (formerly bitwarden_rs) and use the bitwarden clients. This is more of a lastpass-esque experience than KeePass in a sync program, which was my previous solution from about 10 years ago to about 3 years ago when I switched to bitwarden.
How do they compare? I've been eyeing Bitwarden for a while only because there's an iPhone in my household and it doesn't support Syncthing, so we end up manually syncing the DB on that device occasionally. It would be great to avoid that manual sync.
For me the big advantage was just never having to think about sync conflicts ever again, which happened to me often enough to be annoying. There's also things like the browser integration is more streamlined, using the bitwarden CLI is convenient in some of my automation, and while android supports syncthing, android has always been a bit less reliable in desktop platforms in allowing syncthing to run in the background or in allowing other apps to know that syncthing has updated a file.
I actually moved from Dropbox to Syncthing as I found Syncthing more reliable, as Dropbox would sometimes generate spurious conflicts even between my desktop devices.
