In the old Customization inteface when you selected to "Show dependencies" on and object like a field a user inteface opened from where you could click on the dependant objects and navigate to these objects. The "Show dependancies" interface in the Power Apps maker portal does not have the option to navigate to the objects.
What makes the feature even worse is that you cannot rezise the column width in the list of dependant objects. So often if the objects have long names (like workflows usually have) it can be very difficult to figure out the full names of the different objects so you can go find them (since you no longer can just open them directly from the view). You can't even hoover above the object display name to get a tooltip that shows the full name.
I seems that this view is rather half baked in general.