DY -“1) Cholov Akum: milked without supervision, without any external reasons, such as govenment regulations or remoteness from any b’heimah t’meiah, to think there’s no milk from a b’heima t’meiah mixed in. Assur”
The implication of your post is that it’s always “Osser”, which is not true! If some Achronim hold that butter and cream is Mutter, then it can’t be Osser in the classic usual version of Chazal.