Wayland never fails to impress me with how much stuff has still been left out (are screenshots still broken?) that it hardly shocks me to learn that it doesn't support screensavers.

Progress over many years worth of time. This is why whenever people ask me what display I run it's always X. X is a piece of work for sure but it's the only display server that actually works for almost every conceivable use case. Despite all the time and effort Wayland devs have spent to try and wrest control over the Linux graphical rendering server they are still a long ways from replacing X for good.