Xbox compatibility with multiplayer on different consoles

Are all three Xbox consoles compatible with multiplayer among them? i.e., Can Xbox One/Xbox One S owners play in multiplayer with Xbox Series X/S owners, or are they confined to playing with only other Xbox One owners? I’ll soon be booted from Stadia and am looking into alternative gaming platforms if and when Google ever gets around to refunding the money we’ve invested in the soon-to-be defunct system.

I suppose the same could be asked of Playstation 4/4 Pro and Playstation 5 owners as I’m also looking into those systems, as well.

Thanks for any help or information on this subject. =)

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