The ALICE Collaboration presents the first measurements of -tagged jet angularities in proton–proton (pp) collisions at {}. Jet angularities are powerful substructure observables that characterize the angular and momentum distributions of particles within jets via tunable weighting parameters. Varying the angular parameter in jet angularities allows for a systematic probe of the sensitivity to collinear and soft radiation, enabling the study of flavor-dependent fragmentation and hadronization through comparisons of jets initiated by different partons. This paper reports -tagged and inclusive (gluon-dominated) charged-particle jet angularities with a radius parameter $R=0.4$ in the low jet transverse momentum range (), where charm-quark mass effects are most significant. At low angular weight, which emphasizes collinear radiation, -tagged jets exhibit smaller angularity values than inclusive jets. This provides evidence for the radiation suppression from massive quarks – a phenomenon known as the QCD dead-cone effect. As the angular weight increases, giving more emphasis to wide-angle radiation, the difference between -tagged and inclusive jet distributions decreases. This indicates that the modification is concentrated within the jet core rather than its edge. PYTHIA 8 simulations qualitatively reproduce both the angularity of -tagged and inclusive charged-particle jets, but reproduce the -tagged jet distributions better than those of inclusive jets, offering a powerful new constraint for models. These results provide insight into flavor-dependent fragmentation and establish an essential baseline for future studies of jet modifications in the quark–gluon plasma produced in heavy-ion collisions.