No, there is Gnome’s, KDE’s, Weston’s (the reference), and Sway (wlroots)’s implementation.
This latter is pretty much a library to build your own de with minimal code up on top.
This latter is pretty much a library to build your own de with minimal code up on top.
All these conversations end up kinda pointless because of a sort of "it works on my machine[desktop environment]".