[wmf]

It is basically a raw video that transfers the full window content over the wire.

Because that's more efficient.

If Wayland would contain modern drawing primitives like those that Cairo offers which could easily be serialized, we would have real network transparency even over slow low bandwidth connections.

Nope, drawing commands for a modern UI are more bytes than the window contents. This is a deeply counterintuitive topic and it's unfortunate that nobody implemented waypipe until recently so it was impossible to measure.

[sprash]

Any proof for this? I don't believe you. Every SVG is smaller than the rendered PNG counterpart. And SVG is a really inefficient way to serialize drawing commands.

Also including drawing into your Compositor (like Windows and MacOS do) gives you additional infinite scaling for free which would solve the multi dpi monitor problem.