"Licorice Pizza" only On Demand in 4K UHD?

Hi, I've been trying to watch the movie "Licorice Pizza" On Demand from MGM+, which I pay for, and it says it's only available for 4K UHD TV boxes, which I don't have.  Can this be corrected so that it plays on any TV box?  That seems crazy to me that it would only be available to 4K UHD boxes.  Thanks!