XWayland doesn't really help you with things that are part of the desktop environment. You can't run a desktop background/icons manager or a dock/panel in XWayland, as it won't have access to the kind of information it needs to implement all its features.
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This is the problem with making a wholesale rewrite and not including good (and complete!) backwards compatibility for the duration of the transition.
What’s not good and incomplete about xwayland?
XWayland doesn't really help you with things that are part of the desktop environment. You can't run a desktop background/icons manager or a dock/panel in XWayland, as it won't have access to the kind of information it needs to implement all its features.