Ratio between the line-of-sight velocity dispersion (σ_los) of the simulated UDGs at apocentre and the corresponding expected isolated MOND prediction (σ_iso) as a function of radius. The six panels are arranged in the order of increasing eccentricity of the orbits of the launched UDGs, and the six different curves are colored based on the initial launch distance of the UDGs. The horizontal black line corresponds to σ_los = σ_iso. The stellar velocity dispersion of observed Coma cluster UDGs are generally within 30% of σ_los given their uncertainties (cf. Table 1 and Fig. 4 of Freundlich et al. 2022), a regime that no simulated UDG reaches.