Optical bolometric light curves of SN 2020uem and other SNe, including Type Ia-CSM: PTF11kx (Silverman et al. 2013a); Type IIn/Ia-CSM: SN 1997cy (Germany et al. 2000; Turatto et al. 2000), SN 2005gj (Prieto et al. 2007), SN 2012ca (Inserra et al. 2014, 2016), and SN 2013dn (Fox et al. 2015); Type Ia/91T-like: SN 1991T (Lira et al. 1998); super-Chandrasekhar Type Ia: SN 2009dc (Yamanaka et al. 2009); and Type IIn: SN 2010jl (Zhang et al. 2012). Note that the epochs of all light curves, except for SN 2020uem, are relative to the peak, while the epoch of SN 2020uem is relative to the discovery because of the lack of observations in the rising phase.