If they were meant for the same target group, then why Ubuntu did go ahead and started tweaking GNOME Shell and did not stick to stock GNOME? Because stock GNOME targets a different group than previously Ubuntu did or eOS.
Try to improve the workflows you do repeatedly and regularly. There is an immense amount of time and energy you can save if you optimise those activities that you do day by day.
A good and easy example to start with are web browser bookmarks and their most effective use.