Cinnamon default session limits on Wayland in Linux Mint 21

Linux Mint 21 is documented with Cinnamon 5.4.8 and a default Xorg-based session. Wayland support for Cinnamon is described as experimental and not enabled by default.

The precise goal is to clarify the current support limits for a Wayland session in the default Cinnamon configuration and the constraints that affect desktop features such as extensions and theming.

There is unresolved uncertainty about whether a future release will transition the default Cinnamon session to Wayland, and how such a change would impact compatibility with applications and components that rely on Xorg behavior. Status may have changed in Linux Mint 22 or later.

Is a Wayland session offered as a selectable option in the default Cinnamon installation? What documented feature limits currently prevent full Wayland support for Cinnamon? Is there an official policy or roadmap for moving the default session from Xorg to Wayland?