Relation between different activity indicators and the photometric modulation, $S_{\text{ph}}^{\prime }$, measured by Gaulme et al. (2020) (in log scale), which is an indicator of photospheric activity. The NUV excess, Δm_NUV, is a chromospheric activity indicator measured using GALEX data. The indices, S_{Ca II H&K}, S​_Hα, S_Mg I, and S_Ca II IR, are chromospheric activity indicators measured using LAMOST data. The index, S_Fe I, measured using LAMOST data is insensitive to stellar activity and used as a control variable. Gray dots refer to regular photometrically inactive RGs (i.e., with no evidence of spot modulation) that display oscillations. Blue dots refer to photometrically active RGs (i.e., those exhibiting spot modulation) with partially suppressed oscillations. Black dots refer to photometrically active and non-oscillating RGs in close binary systems, which were identified by Gaulme et al. (2020). Green dots refer to non-oscillating RGs with ambiguous binary versus single status; we do not have NUV excess data for these stars.