Many colleges already superscore the ACT, so check websites of the colleges on your D’s list.
Colleges that currently don’t superscore the ACT will likely discuss this spring/summer how to handle ACT’s new policy (Sept 2020) of allowing students to only take 1, 2, or 3 sections (once they have taken a complete test). More colleges may allow superscoring due to that, and hopefully they will have decided before their applications go live for 2021/22 cycle.
Your D can always reach out to AOs and ask, but probably should wait until the summer to do that.