How do you plug a non-CDB DB into a CDB in a DBCS?

Hello, this is 19.20.0.0.0 and I have a CDB in a DBCS running Oracle Linux 7. I am migrating a non-CDB DB running in a compute instance into the DB in the DBCS as a PDB, but I do not know the best way to do this.

I fear if I use the traditional method of plugging the non-CDB into the CDB it will break the DBCS, because the DBCS will not know I have done this.

Do I need to use dbaascli or dbcli? Can anyone throw down a few breadcrumbs for me?

Please lmk what other information would be helpful.