Illustration of the strangeness-induced charged-particle multiplicity bias effect from PYTHIA 8 QCD-CR + Ropes simulation. (left) $\mathrm{d}N_\mathrm{ch}/\mathrm{d}\eta|_{|\eta| <  0.5}$ distribution in the INEL > 0, V0M-(I+II+III) and V0M-XII event classes. Open markers are the corresponding $\mathrm{d}N_\mathrm{ch}/\mathrm{d}\eta|_{|\eta| <  0.5}$ resulting from the additional request of at least 5 ${\rm K}^{0}_{\rm{S}}$ in the event. Continuous and dashed vertical lines show the averages of the unbiased and biased multiplicity distributions, respectively. (right) Relative shift in the $\langle\mathrm{d}N_\mathrm{ch}/\mathrm{d}\eta\rangle$ for all the different V0M event classes when requiring at least one (full markers) or more than one (open markers) strange particles in the event. Lines are shown to guide the eye.