Hi,
I used to be a big fan of GNOME the way it got out of my way when I didn’t need it and no icons in the bottom to take up desktop space. But the top bar just seems so… useless. It holds a few useful icons in the right side (and you can get extensions to add more) but other than this, it’s just taking up space. After a trip past Xfce I’m now on KDE with the bar in the top.
Have I missed anything about the top bar in GNOME Desktop?
Install an extension to hide it, I just tried this and it works for me: https://extensions.gnome.org/extension/545/hide-top-bar/
You can install extensions by searching for it in the GNOME extensions manager. Once installed, you can edit the settings in the same place (I found I had to move off the window to another application before hiding was applied).