Historically I've thought the GitHub web UI was great - clean, usable, simple. Over the past couple of years it's started to get more and more feature bloat, to the point where it's becoming less usable.
Projects is a mixed bag, but not terrible. I feel like Github is generally good at making things as complex as they need to be, and no more.
Now? Whatever UI update they've just pushed isn't reflected in the documentation. I can't think of anything that's been improved since GH decided to reinvent text rendering (and poorly at that) and then double down on it.
Upon further inspection it sort of works if I log in. It behaves differently at least. Ugh.