System Information
Operating system:
Graphics card:

Blender Version
Broken: 2.82A, 2.81, 2.80
Worked: (newest version of Blender that worked as expected)

Short description of error
Ctrl + G doesn't do anything, doesn't create a new collection or anything,

I mean i'd complain that grouping is to be able to select a whole collection in the viewport instead of going through the collection outliner, but right now, it doesn't do anything.
I'd thought ctrl + G means that the it'd dump all of the selected things onto 1 collection on top or bottom (like illustrator?) and when you select and duplicate a group, it duplicates the collection, not within the collection.

now, I understand you achieve the same effect if you do m -> select the layer -> make new collection, but when you have a very nested file system, making a new group becomes troublesome

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

1. ctrl + G.

2.a pop -up bubble says "make new collection"

3. type something into the name space

4. nothing happens