Second-order longitudinal hyperon polarization as a function of $p_{\mathrm{T}}$ in the 30--50\% Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.36$ TeV and 5.02 TeV. Statistical and systematic uncertainties are represented as bars and boxes, respectively. The solid line represents model calculations for the longitudinal polarization with the viscosity implementations (Option III) from Ref. .