I've retested now quickly on different machine, and it *seems* to be working OK in Buster.
# mysqldump -uroot --max_allowed_packet=2147483648 --hex-blob --lock-all-tables --master-data --flush-privileges --databases video1 mysql > backup.sql # mysql < backup.sql # lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 10 (buster) Release: 10 Codename: buster # dpkg -l | grep mariadb ii libmariadb3:amd64 1:10.3.23-0+deb10u1 amd64 MariaDB database client library ii mariadb-client 1:10.3.23-0+deb10u1 all MariaDB database client (metapackage depending on the latest version) ii mariadb-client-10.3 1:10.3.23-0+deb10u1 amd64 MariaDB database client binaries ii mariadb-client-core-10.3 1:10.3.23-0+deb10u1 amd64 MariaDB database core client binaries ii mariadb-common 1:10.3.23-0+deb10u1 all MariaDB common metapackage ii mariadb-server 1:10.3.23-0+deb10u1 all MariaDB database server (metapackage depending on the latest version) ii mariadb-server-10.3 1:10.3.23-0+deb10u1 amd64 MariaDB database server binaries ii mariadb-server-core-10.3 1:10.3.23-0+deb10u1 amd64 MariaDB database core server files
