Coprrect and those were Dem electors.Every state has submitted a single slate of official certified electoral votes. Those are the only ones that matter and the only ones that will be counted, by law, in Congress. Every Elector has cast their ballot in accordance with the results of the elections in their state.
The other "alternate electors" are just a P.R. stunt with zero credibility or legitimacy. They are not sanctioned by any full governing body in any state. They will be summarily rejected by Congress, as they should be.
You need to go back to U.S. Government class.