Hi @sightkick and welcome to the community,
Typically this community is geared towards Bitwarden user-to-user support and issues with Vaultwarden should be directed towards the appropriate Vaultwarden forums community.
I can confirm though that this does appear to be a client-side issue with the official release as I see both the web-vault and desktop app do not show Organizational vaults in alphabetical order, and instead appear possibly in the order in which they were joined?
The browser extensions do appear to be listed alphabetically though FWIW.