Does Airport Express support Airplay 2 to allow for multi room music streaming from sources other than just iTunes simultaneously like sonos?

AirPlay 2 is advertised to play multi room simultaneously. It states that not all existing speakers and other 3rd party devices are compatible with Airplay 2 but makes no mention to its own products including AirPort Extreme, Airport Express, AppleTV 2/3.

AirPort Express

AirPort Express

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