Most of the classic Fox library will probably come from boutique labels, as back in 2019 when Disney+ launched they showed all of the titles they would be offering. Only a few select Fox titles where included in their list. Marilyn wasn't in the line up but Julie Andrews was.
Is that Daffy Duck on the inside of the steelbook, if it is then that's got to be a first for Disney to included a non Disney owned character on any media or merchandise.
How much do you think the mouse had to pay WB for Daffy's licensing?