Trigger-normalized recoil jet distributions ($R=0.4$) as a function of $\Delta\varphi$ and $p_{\rm T,\text{ch jet}}^{\rm reco}$, in pp collisions (left) and in Pb$-$Pb collisions (right) at $\snn=5.02$ TeV, for TT{20,50} Gev/$c$. The azimuthal region of the analysis is indicated by the vertical dashed lines.