MeerKAT galaxy sample studied in this work. The high-resolution (∼22″) and low-resolution (∼65″) cases (HR and LR) are shown separately in the top and bottom parts of the figure. Top panels: H I column density iso-contours overlaid on top of grz colour-composite images from the DESI Legacy Imaging Surveys (Dey et al. 2019). Contours are drawn from primary-beam corrected moment-0 maps at N_HI levels of 10¹⁹, 10²⁰ (thicker line), 10^20.5, and 10²¹ cm⁻². The LR panels show an additional contour at the level of 10¹⁸ cm⁻², in cyan. Bottom panels: Moment-2 maps. The velocity colour scheme is shown in the rightmost panels.