Document PostgreSQL fallback host connection strings (#25461)

Author: deepujain

airflow-core/docs/howto/set-up-database.rst

@@ -278,9 +278,8 @@ For more information regarding setup of the PostgreSQL connection, see `PostgreS
 
 .. note::
 
-   PostgreSQL connection strings can include multiple fallback hosts when you use the ``psycopg2`` driver.
-   Use SQLAlchemy's documented PostgreSQL URL format for this setup, because each fallback host must be
-   passed in a form that the SQLAlchemy dialect forwards correctly to libpq. See
+   PostgreSQL connection strings can include multiple fallback hosts. Use SQLAlchemy's documented PostgreSQL
+   URL format for this setup so each fallback host is passed correctly to the selected PostgreSQL driver. See
    `Specifying multiple fallback hosts <https://docs.sqlalchemy.org/en/20/dialects/postgresql.html#specifying-multiple-fallback-hosts>`__
    in the SQLAlchemy documentation.