All-flavor cosmogenic neutrino flux from TXS 0506+056 due to UHECR propagation along the line of sight, i.e., using the same normalization as the cosmogenic γ-ray spectrum in Fig. 1. The black and red curves correspond to 100 days and 10 years of observations of muon neutrino fluxes by IceCube-Gen2 and indicate the sensitivity for neutrino flares and the time-averaged neutrino emission, respectively.