WebDAV is a very old and very technical protocol to setup. The average user just wants to get the app and have it work everywhere.
I did run keypass for many years but the janky sync (it is better now) was one of the driving forces for me to change.
These days group password sharing among my family is a key feature (Netflix,Disney+) which is another feature found in some of the newer passwords managers.
Some years back there was a password manager which stopped sync through cloud (probably Dropbox) & insisted it went through their own servers instead. The whiff of subscription service was in the air so I switched Keepass.
I sync Keepass between devices myself but I recommend Bitwarden to family who probably couldn't figure out how to set sync up with Keepass if I'm not around. I stick with Keepass as I like the key file aspect & because it allows multiple documents to be added to entries (restricted on Bitwarden). The documents are available offline, such as vehicle breakdown documents etc. Could be very useful one day!