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Now Ubuntu is Also Ditching Xorg Completely for Wayland!
(news.itsfoss.com)
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Emphasis on the protocol part. There is only 1 implementation of X11 (Xorg). Wayland however is just protocols. There are several implementations of varying quality.
Depending on your DE, you could be using one of Weston (reference impl), Mutter (GNOME), Kwin (Plasma), wlroots (hyprland, sway), etc.