I'm fairly certain the RRD-2ANF will work for this fan, but wanted to double check:
https://modernfan.com/fan/plum
It is an AC motor, and after speaking with the company that makes it, the only two requirements are that the Lutron controls provide at at least 1A to the fan, and that the RRD-2ANF adjusts speed in a "step fashion" (which I think the 2ANF does - 3 steps).
They actually provide a basic 3-4 step "controller" that you can use if you would like (they also have more advanced RF options which I am avoiding).
Do you think this will work?