Charged particle $v_2\{2\}$, $v_3\{2\}$, and $v_2\{4\}$ as a function of centrality in \OO (left) and \NeNe (right) collisions at $\sqrt{s_{_\mathrm{NN}}}$ = 5.36 TeV. The vertical lines represent statistical uncertainties, and the open boxes represent systematic uncertainties, with most of them being smaller than the symbol size. The measurements are compared with Trajectum calculations with NLEFT and PGCM inputs .