Hello! Could you please check if libmyodbc works if built against libmariadb3 instead of libmysqlclient18 ? That would be a nice way to solve it.
If you have tried this in the past, could you pleas retry it now as Debian unstable has had several updates to both MariaDB and Perl libraries recently. Please also note this potentially related bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?archive=no&bug=849630 Thanks!