Just to make one thing clear, I really like the new design of the ADG3 navigation.
However it takes up a lot of real estate on my screen so I use the collapsed variant. Hence the need for the tooltips, it would greatly improve my navigation speed if I did not have to click through all available options before I find what I want, or un-collapse the menu, click the thing and then re-collapse it.
I have provided a screenshot from Bitbucket, I always struggle to find the correct page in there. I was looking for the history, but failed to find it without peeking on the un-collapsed menu.
Is this something you would consider? Or is it perhaps already in your backlog? What can I do to convince you that it is a good idea..?