GoldenGate Free 23c now supports per-pluggable Database (per-PDB) capture (Only). Oracle GoldenGate 23c (23.3) enables you to grant privileges to users at the PDB level.

Root-level access using common user c##ggadmin, is no longer available.

https://docs.oracle.com/en/middleware/goldengate/free/23/uggfe/goldengate-free-release-notes.html#GUID-65470EEC-B982-4817-8083-4D058D973125