GNOME didnt look like that all the time. I dont know when but they went from bottom panel to top panel to left side panel to this layout.
The top bar is used differently. Workspace indicator, but no global menu (which makes no sense) or app menu. Extensions can make it pretty much the same
The dock is hidden and forces the workflow with workspaces. I dont think thats a crazy feature and dash to dock makes it equal again
The window buttons are different
The top bars are thicker etc.
Some settings are different, the tiling works better but yeah it is too similar.