It turns out, the mssql driver is generally incompatible with openssl statically linked into the binary. It force loads libssl.so.3 no matter if openssl is already loaded. We're looking into solving that, but it currently seems like the only possibility of using mssql is to link against openssl dynamically.

Fwiw neither pgsql, mysql or sqlite, nor other odbc connectors are having this issue. It's only mssql.

microsoft/msphpsql#1573

If we don't find a solution or microsoft patches that, we may as well just remove the extension.