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Yes, there is a Possibility to do that. Open Gnome Software Center and search for Extension Manager:
(ignore the Language; my System is in german)
Install it and open it. On the ''Installed'' Tab, You see all the installed Extensions. Look for the Zorin Taskbar and enable it. When it is enabled, go in the Taskbar Settings and there to the ''Action'' Tab. There You have a Toggle to turn on the Gnome Top Bar:
If a Dock should be enough, You could install the Dash To Dock Gnome Extension. To do that go to the ''Browse'' Tab in the Extension Manager and search for ''dash to dock'' and install it:
