K$_S^0$, $Λ+\barΛ$, $Ξ^-+\bar{Ξ^+}$ and $Ω^-+\barΩ^+$ particle yield ratios to the pion yield in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV (squares), compared to results in pp collisions at $\sqrt{s} = 7$ TeV and $\sqrt{s} = 13$ TeV (hollow and full circles, respectively), in p-Pb collisions at $\sqrt{s} = 5.02$ TeV (hollow diamonds), and in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV (stars). Error bars show the statistical uncertainty, while boxes represent the total systematic uncertainty. EPOS 4 predictions are reported for the top Pb-Pb energy as solid lines.