The extracted Breit--Wigner parameters from the $\pi^\pm$K$^0_{\rm S}$ femtoscopic correlation inpp collisions at $\sqrt{s}=13$ TeV compared with those for K$^*_0(700)$ from the BES and the E791 experiments. The horizontal and vertical bars represent the total uncertainties. The "ALICE average" value is the weighted average of the three ALICE points.