> There's not much to 2D accelerate with modern applications that all do their own rendering. Compositing acceleration is possible in a vendor-agnostic way via KMS planes and we'll have that in wlroots.

It's even more fun when your realize no GPU in the last decade has shipped 2D acceleration capabilities. Wayland uses 3D acceleration because that's what GPUs offer, because that's what the other platforms exclusively offer now.