"Free Guy" and "Death on the Nile" have officially been pulled from the December release schedule by Disney. This is just another move due to the ongoing pandemic and the impact it's having on the film and theatre industry.
Originally, "Free Guy" was slated for a December 11 premiere, and "Death on the Nile" was slated for December 18. For the time being, "Wonder Woman 1984" is still on the schedule for a December 25 release, but most think that too will eventually be delayed. There's also the question of whether or not theatres will be open by then.
Universal is, so far, still releasing "The Croods: A New Age" in December as well as releasing the film on PVOD.