Darktable: Lighttable Overlays part 1
Darktable, by default, has a very simple and light view for browsing images.

Default Information in Darktable/Lighttable
As you can see, it’s very sparse. There’s nothing to interfere with viewing the images, which is the base philosophy of Darktable.
The problem is that I don’t like it. I like to see what’s what. I have set the my own display of what I want to see. But to see it, you will need:
Press on the * at the top right of the lighttable
Select either overlay on mouse hover or permanent overlays

Showing Image Information in Darktable/Lighttable
see also https://www.sritch.com/photography/darktable-lighttable-overlays-p2/ to finish configuring the lighttable overlays.