I realize that we like to use the page title here on HN, but this really should be something like "Data loss cases with MariaDB Glaera Cluster 12.1.2".

I really like glaera for low volume clustering, because of the true multi-master nature. I've been using it for over a decade on a clustered mail server for storing account information, and more recently I've pumped the log information in there so each user can see their related log messages, for a user base of around 6,000 users, and it's been a real workhorse.