We went in December of 2021.
As others mentioned, at the beginning of the tour, the guide will ask everyone in the vehicle what their favorite show(s) are. This is to help tune the tour towards what people on the tour want to see. The guides will do their best to customize it.
I found the Harry Potter stuff very interesting. There is also a large DC Superhero section that was nice to go through.
Note that for the guided tour guide section, almost every tour will be different, based on what people say they like, and what is available that day. For example, there is a couch from the show Friends near a fountain outside, that was from the show's credits. It was not available when we were there due to weather, but normally they have you take pictures with it if you wish. If their is filming or a crew, of course you will not be able to visit that section, etc.
The second part of the tour (The self guided section), is almost always exactly the same, other than any new exhibits they have.