First: Please start by stating your KiCad version correctly.
There is no KiCad V5.02. V5.1 is expected within a few weeks.
So I’ll assume you have one of the KiCAd V5.0.2 versions.
Next: Your screenshot is very vague, so I’m mostly guessing what you have done.
Why do you think those layers should be enabled in the Footprint Editor?
Edge.Cuts is rarely usefull in the Footprint editor. Some components are designed to be mounted in a cutout in the PCB (for example some low-profile USB connectors).
The 3D viewer is a bit finicky when it comes to board outlines. On my Linux box it tends to not start or crash if the board outline is not properly defined.
If you want to experiment with the 3D viewer as a beginner, then start with a PCB with a fully closed & valid outline.
Have you installed Kicad-demos? There are some fully designed boards in there to experiment with.
When the 3D viewer is started from the Footprint Editor it usually shows a small dummy PCB with the size of (presumedly) the Couryard layer, or the smallest box that fits the component outline.
You are probably looking at a footprint of a component without a 3D model, or have turned it off in the settings of the 3D viewer.
The 3D viewer can turn on / off some settings:
3D-Viewer / Preferences / Display Options
And there are other menu’s also greatly influence what it looks like.
Have a look at the board from this thread:
https://forum.kicad.info/t/seek-review-my-first-design/15510
When you experiment with the settings you should be able to have something similar to the screenshotr there on your own screen.