Sadly no. She only appeared in episodes 4 thru 7 and 9 as Doctor Darcy Lewis (apparently Jane Foster rub offer on her and she's now a Doctor of Astrophysics like Jane).
I hope that it isn't 8 year until her next appearance. In a interview done after Darcy made her first appearance in WandaVision, Kat Dennings mentioned that she is aware of the Tumbler fan-fiction stories about Darcy and mentioned that she wants have at least one scene of Darcy and Loki actually interacting.