There is a small button that is a little hard to see in D365 forms that will allow you to toggle open the fact boxes. By default they are collapsed so that the form doesn’t have to show a lot of information and will open quicker. So it’s handy if you are browsing records you can toggle it open to have a look at some of the related information that is displayed in the fact boxes.
Here is a quick overview.
D365 1611 Update5 (7.0.4475.35138)