Currently, VSL offers expression maps (xmaps) for Cubase.
However, such xmaps for Cubase are not directly usable in Dorico without a problem.
For non-synchronized version of Vienna Special Edition, its Cubase xmap cannot function well in Dorico Pro 2.2.20, causing lacks of certain notes and dynamic playbacks (also affecting audio mixdown, audio stems output, and midi files output):
https://steinberg.net/forums/viewtopic.php?f=246&t=163364&p=875544&hilit=vsl#p875544
Daniel stated: "I don't think the people at VSL consider the VST Expression Maps they publish to be targeted at Dorico; they're specifically for Cubase."
Hence my expection of VSL official xmaps for Dorico.