Constraints on sGB gravity admitting scalarization, obtained from the orbital decay rate of J0348+0432 for two EoSs (depicted with solid lines). The dashed line denotes the threshold value of λ below which scalarized solutions exist only for neutron star masses above the pulsar one, and thus no constraints can be imposed. This limit is related to the bifurcation points in the top panel of Fig. 1 and is independent of β. Top: coupling function Eq. (14). Bottom: coupling function Eq. (15).