Just moved from Unity to GNOME with the update to Ubuntu 17.10. There is a HUGE amount of wasted space at the top of the screen, when an application is open.
Evolution and Firefox both have four "bars" with 90% of each empty. Unity, to its credit was able to blend / mix these horizontal bars so there was only one / two.
Four is way too much. If this is GNOME I may carry on with Unity for the next six months.
Can anybody suggest a tweak/change/fix for this?