Operating system: elementaryOS 0.4.1
Graphics card: GTX 1080
Broken: 2.80, d93a47b7bbda
Short description of error
If you move an object to a new collection per shortcut M>NewCollection, the textfield becomes active automatically, allowing you to enter the name immediately without having to activate the textfield with your mouse. Works the same as with Rename Active Item.
However, if you use the operator Link to Collection (Shift+M>NewCollection), the textfield is not activated, so you have to use the mouse to be able to enter the name of the new collection. This slows down the workflow and is not consistent with the other two operators mentioned above. Probably just an oversight, but still. :)
Exact steps for others to reproduce the error
Open Blender, press Shift+M and choose New Collection. You first have to click to activate the textfield to enter the name.