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Mortgage scores are credit scores. There are many versions of credit scores, even different versions of FICO scores.
You can get your mortgage FICO scores here as of this year in the products section, the 3 B report. That report will also have your FICO 8 scores, bankcard scores, auto enhanced scores as well as mortgage scores.
Here are two threads that give you great explanations on the FICO scores used for mortgages: