That being a Stellantis/HARMAN product, it may be a bit more complicated to solve. I just watched a video in regards to the 2024 Cherokee, and it was defaulting to an automatic full screen mode. Be on the lookout at any point during your CarPlay or AA display for a set of arrows pointing in opposite directions. They'll often be diagonal, and should be your key to taking it full screen. If no such thing exists, try commenting a photo of it!