The details always being a bit off makes me think the better route might be to create an environment that follows macOS in the broad strokes (e.g. global menubar, applications presiding over windows in navigation, a general inclination towards loose organization of odd sized windows, etc) but when it comes to aesthetics has its own identity filling in the details.

A lot of DEs already do similar for Windows, being variants on the Win9X desktop paradigm (taskbar, windows over applications, inclination towards windows being maximized) so it’s hardly a novel concept and I think it more consistently delivers decent results.