"Use table view" doesn't seem to do anything

I’m testing out this plugin for the first time, and it seems great. One thing however is that the “Use table view” for field group details doesn’t seem to do anything.

I assumed this would affect the display of the fields on the add/edit page, based on the description:

List fields in a more compact and overviewable table view. Works best when you use just a few fields.

What does this do? I’m interested in styling and arranging the fields better.

https://www.ads-software.com/plugins/simple-fields/