The first Monterey stopped my CalDigit (purchased from apple.com) and the 12.2.1 one stopped my Satechi hub.
I don't know what their play is, but it is really annoying.
I guess I will have to go to the apple store and see if I can find something else.
I talked to CalDigit support and they confirmed Monterey is affecting their whole product line.
you mean thunderbolt docs?