I’m still onboard with rust as being better than C, however…
My understanding is that it is considerably harder to correctly write unsafe rust than it is to correctly write c, because if you accidentally violate any of safe rust’s guaranteed invariants in an unsafe block, things go bananas.
Sync that has never broken for me and works on a phone. My attempts at keypass with both google drive and syncthing invariably ended up with me needing to periodically do manual reconciliation. I’ve never had this problem with bitwarden. Also, bitwardens passkey hooks work on iOS. They appear unsupported by keepassium.