Orbital architecture of known planets in the observed systems. The giant planets in the sample are shown as red circles, with the symbol size proportional to the minimum planetary mass. The yellow circle shows the Neptune-mass planet BD-114672 c (Barbato et al. 2020). The conservative and optimistic limits of the habitable zone of each system (Kopparapu et al. 2013) are shown as thick dark green and light green bands, respectively.