No, not really. The Disney-MGM Studios was hyphenated as it was supposed to appear as if it was a partnership between the two. As they didn't feel the current slate of Disney live action films at the time was enough to interest people in a park focused, mostly, on live production. However, MGM built a park in Las Vegas which led to a lot of bad blood and litigation. Consequently, the park was referred to as Disney Studios Florida in some off-property advertising, particularly on the west coast. In this case, the possessive wouldn't really make sense. However, this was a relatively unique case as possessive form of Disney still permeated the brand for many years, including Disney's Animal Kingdom and even Disney's Hollywood Studios, the later rebrand of the park. It's really been an Iger thing since 2010ish.