Someone recreated Windows 8.1's tiled Start menu for Linux — a niche, open-source throwback. It's Python-based, supports flatpaks, Steam, and native apps; tiles are movable and colors customizable.
A Linux developer has created a Windows 8 DE. Win8DE looks very much like Windows 8. This new desktop is still in alpha stages. Remember Windows 8? I'm sure I can guess what you remember from that ...