I guess I needed to be more clear sorry for any confusion.
I’m taking Delta-operated flight to destination and Virgin-operated flight back home. I don’t have Delta membership, but used its app to see that I’m Silver medallion. I am FB silver as I fly for leisure only and mostly international.
I did “light” which allows carry-on only, but I got 1 free checked baggage through Silver status. I don’t see the same for Virgin.