On the initial install of Discovery Hub, there is a selection for the Setup Type.
The support documents say to choose Typical, without any information behind when or why to use the other options.
There does not appear to be any real difference between the three options. Typical and Complete are the same installation; and the Custom selection's only component is whether the ODX is installed on the local drive.
The final result of the installation is fine, in that everything gets installed, but this setup has been noted by a few clients of mine to be "underdeveloped" meaning they are questioning the maturity of the product.
Basically it would look a bit more sophisticated if there was a distinct difference between the options.
Also if the sub - components (ODX) of the custom installation could be a radar button, with a little more information behind the component