I recently made the switch to Vaultwarden when I read a series of articles making predictions about passkeys and how they are lining up to replace passwords. Bitwarden apparently is ready to implement whatever standard becomes most popular and I had FOMO of being left behind if I stuck with keepass only. Previously I was using various keepass compatible apps and then syncing the KDBX database with my Nextcloud. (Vaultwarden is the selfhosted fork of Bitwarden)