Upper panels: Corrected $\Delta_{\rm recoil}(\Delta\varphi)$ distributions for $R=0.4$ in Pb$-$Pb and pp collisions at $\sqrtsNN=5.02$ TeV, for intervals in recoil $p_{\rm T,\text{ch jet}}$: [10,20] (left), [20,30] (middle), and [30,50] (right) GeV/$c$. Lower panels: $I_{\rm AA}(\Delta\varphi)$. Predictions from JETSCAPE, JEWEL, and the LO pQCD calculation are also shown.