Subleading subjet purity for soft drop $z_{\text{cut}} = 0.2$ and dynamical grooming $a = 1.0$ applied to jets found in semicentral (left) and central (right) Pb−Pb collisions. Closed markers correspond to the standard grooming algorithms, while open markers represent dynamical grooming $a = 1.0$ with a minimum $k^{\text{meas.}}_{\text{T,g}}$ requirement. Statistical uncertainties are represented by bars.