For those that still like 3D and missed the deal back on July -2019
Amazon has : Fantastic Beasts: The Crimes of Grindelwald : Blu-ray 3D for 12.99
The July 2019 sale was 10.95 so... here it's chalked up for inflation.
NOTE: Temporarily out of stock. but price will still be honored.
My copy came with UV digital code. Although the Box Art on Amazon page does not show it and the listing says Blu Ray. It is the 3D version.
To be safe : I would screen capture or take a picture of your purchase if Amazon gets this screwed up.