Following arguments on the Linux kernel mailing list the past few days over some Linux kernel maintainers being against the notion of Rust code in the mainline Linux kernel and trying to avoid it and very passionate views over the Linux kernel development process, Asahi Linux lead developer Hector Martin has removed himself from being an upstream maintainer of the ARM Apple code.
No. The kernel does not care about X11 vs Wayland. Or rather, both X11 and Wayland use KMS ( Kernel Mode Setting ) and DRM ( Direct Rendering ) these days. That is, both X11 and Wayland call on the same kernel features.