Thanks for the effort you are putting into comments here lately! Maybe you have ideas on improving the "Are we Wayland yet?" site: https://github.com/mpsq/arewewaylandyet Yesterday I sent a PR for a "Missing" section.
There isn't much for me to say. To be honest, I would probably not contribute to that website. Wayland isn't that exciting of a technology and I don't think end users should even need to care about it or care that any of those utilities supports Wayland, if distro developers are doing their jobs then it will all "just work" and nobody has to worry about it. Also that website is misleading, many of those utilities are wlroots specific and not really useful on other implementations.