It’s just the negatives of the bazaar style development, it’s not like we ever had a unified approach to desktops (remember a few years ago how tray icons and whatnot were all different between KDE and Gnome?). There is no entity like apple that can just work on the details in the background and release it overnight and say that from now on this is the supported API. An open source one has to live in the open from day 1. Mind you, the standardization will speed up considerably, the first year of that 14 is very different in pace from the last ones.

Also, screenshots are not a trivial task to get right, sure, here is its buffer is easy. But then will you also implement a screen sharing API separately? Will it just repeatedly take screenshots for like 20 FPS? That was the reason for it taking longer time, but it works very well now.