With Wayland, programs still can’t restore their window position or size. It sure would be nice if they could get basic functionality working.
Programs can’t set position or size of windows, period, at most they can ask and then hope they don’t get ignored and it’s good that way. Window management is responsibility of the compositor, not of applications.
At least KDE has support for it that’s about on X11 level, a proper-proper solution is still in the pipeline. And yes you’re seeing right it’s been there for four years.
ELI5: what does this mean for the end user? Is there any simple test I can do with both to see this?
it means that you have to manually reposition every single window, every single time. for any and all apps, by design
Wayland is still incomplete, but that is besides the point I was making. X is still not dead, even living within XWayland, within Wayland. X11 is just one implementation of the X Protocol and XWayland is a new implementation.
Wayland itself is functional and working, just not 100% compatible to X11. The same could be said about X11, it would be nice if they could get some basic functionality working right; but they can’t, and that is why we need to replace it with something more modern and better. I think Wayland is working on a solution for restoring window position and size.
When X was created, there was no compatibility needed. Wayland on the other hand is in a different position, where it needs to innovate, make it more secure and keep as much as possible compatibility to X11, DEs and window managers. It’s just unfair to just say Wayland would not have basic functionality working. It also depends on the desktop environments and GNOME is often to blame for.
That does not seem to be a stray and yes there’s definitely reasons to take potshots at Gnome. They still don’t support server-side decorations. Everyone is absolutely fine with them not wanting to use them in their own apps, have them draw window decorations themselves, and every other DE lets gnome apps do exactly that, but Gnome is steadfastly and pointlessly refusing to draw decorations for apps which don’t want to draw their own decorations. It’d be like a hundred straight-forward lines of code for them.
And that’s just the tip of the iceberg when it comes to breakage you have to expect when running Gnome.
It will never be compatible with X because they are different designs. X relies on a central program (server) that accepts commands from programs. It is also a mess as it was built during the 80s for 80s hardware. It was expanded over time but you can only stretch the arch so far.
Wayland doesn’t have a server. You desktop talks to the hardware and then the desktop accepts connections from apps.