Hello! If somebody wants to continue to work on this issue[1], please submit your packaging improvement suggestion as a Merge Request on Salsa[2]. I promise to review them promptly.
[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=975911 [2] https://salsa.debian.org/mariadb-team/mariadb-server/-/wikis/Contributing-to-MariaDB-packaging-in-Debian