Optical BgVri-band light curves of SN 2020lao, corrected for reddening and vertically offset by arbitrary constants for clarity. The previous ATLAS o-band non-detection limit (orange triangle), obtained −0.34 days prior to t_exp (vertical dashed line), is plotted alongside the r-band light curve. ZTF non-detection limits are included. Segments at the top mark the phases when optical (black) and NIR (red) spectroscopy were obtained (see Table A.1).