Correlation between source mass and QPO frequency. The yellow points in the upper left corner represent HF QPO events observed in neutron stars, while the purple points correspond to HF QPO events in Galactic microquasar BHs. The remaining points denote HF QPO events reported in supermassive BHs. The newly detected QPO signal in NGC 1365 is marked with a red square. The three gray lines represent the relationships suggested by Remillard & McClintock (2006) and Kluzniak & Abramowicz (2002). The blue line is based on the maximum allowed orbital frequency proposed by Šrámková et al. (2021), indicating that QPO signals with frequencies above the innermost stable circular orbit would not exist in the region above and to the right of this line. For further information, please refer to the studies by Zhou et al. (2010, 2015) and Zhang et al. (2017, 2018).