Also XWayland has many limitations as X11 does.

If an app has only ever supported X11, then it probably doesn’t care about those limitations (the apps that do care probably already have a Wayland version). And if an app doesn’t care about the extra stuff Wayland has to offer, then there’s not really a reason to add the extra support burden of Wayland. As long as they work fine in XWayland, I think a lot of apps won’t switch over until X11 support starts dropping from their toolkit, and they’ll just go straight to Wayland-only.

Wayland isn’t even adopted by every desktop environment yet. xfce, cinnamon, mate, lxqt, and all the ancient window managers all use x11, and all have their users.

If it works on xwayland, chances are it won’t be switched for a long time.

So software like CAD is funny. Under the surface, 3d CAD like FreeCAD or Blender is taking vertices and placing them in a Cartesian space (X/Y/Z - planes). Then it is building objects in that space by calculating the mathematical relationships in serial. So each feature you add involves adding math problems to a tree. Each feature on the tree is linearly built and relies on the previously calculated math.

Editing any changes up tree is a massive issue called the topological naming problem. All CAD has this issue and all fixes are hacks and patches that are incomplete solutions, (it has to do with π and rounding floating point at every stage of the math).

Now, this is only the beginning. Assemblies are made of parts that each have their own Cartesian coordinate planes. Often, individual parts have features that are referencing other parts in a live relationship where a change in part A also changes part B.

Now imagine modeling a whole car, a game world, a movie set, or a skyscraper. The assemblies get quite large depending on what you’re working on. Just an entire 3d printer modeled in FreeCAD was more than my last computer could handle.

Most advanced CAD needs to get to the level of hardware integration where generalizations made for something like Wayland simply are not sufficient. Like your default CPU scheduler, (CFS on Linux) is setup to maximize throughput at all costs. For CAD, this is not optimal. The process niceness may be enough in most cases, but there may be times when true CPU set isolation is needed to prevent anything interrupting the math as it renders. How this is split and managed with a GPU may be important too.

I barely know enough to say this much. When I was pushing my last computer too far with FreeCAD, optimising the CPU scheduler stopped a crashing problem and extended my use slightly, but was not worth much. I really needed a better computer. However looking into the issue deeply was interesting. It revealed how CAD is a solid outlier workflow that is extremely demanding and very different from the rest of the computer where user experience is the focus.

It is not enough to make a better product.

It is not enough to create all tooling and libraries to seamlessly migrate to the new product, but it helps.

There also needs to be a great big positive reason to make the change. Paying developers, huge user base, the only hardware support, great visuals, etc.

Until I cannot run software on X11, I won’t switch over knowingly.

Because it doesn’t matter for most apps. XWayland works fine.

Even Blender says if it fails to use Wayland it will use X11.

What are you trying to say? Of course it does. Pretty much every Linux app still supports X11, because a lot of people are still using X11. Only exception I’m aware of is Waydroid.

It is still young and underdeveloped.

It is advertised to be simpler, but I don’t understand any of this words thrown in this thread. And I don’t care. Pulseaudio and pipewire is still making me troubles, even thou alsa worked without issues for me.

Point it, make it clear and stable and we will come. Until than we will use the beast we know. It os mich easier when there are no options, but Wayland is fighting something that exists and it takes time and effort.

Another problem is they pushed it to early and people got burned. Until I start seeing “I switched to Wayland in one command and everything works” I (as a user) will not touch it (unles my distro decides to drop X).