Base is a full-featured desktop database front end, designed to meet the needs of a broad array of users. But Base also caters to power users and enterprise requirements, and provides native-support drivers for some of the most-widely employed multi-user database engines: MySQL/MariaDB, Adabas D, MS Access and PostgreSQL. In addition, the built-in support for JDBC- and ODBC-standard drivers allows you to connect to virtually any other existing database engine as well.
LibreOffice Still is the stable version that has undergone more testing (over a longer time).
It is usually recommended for more conservative use.