Will a clip-on curtain robot handle heavy blackout curtains?

The current-generation SwitchBot Curtain 3 is rated to roughly 33 lb (15 kg) per unit and mainstream coverage notes the motor upgrade was specifically aimed at heavy drapes, while older SwitchBot Curtain units and several budget alternatives are repeatedly criticized on r/smarthome and r/homeautomation for stalling on heavier fabric. For wide or very heavy curtains, a powered track system like the Quoya QL500 is the safer bet.