It appears these two usages have a different meanng.In Buddhism, the three marks of existence are three characteristics (Pali: tilakkhaṇa; Sanskrit: त्रिलक्षण, trilakṣaṇa) of all existence and beings ...
According to Buddhist teaching, the meaning is different from Sanskrit.
This new interpretation seems to be in line with Ven. Wanaka Abayaratnalakara, but it makes more sense to me.
This video is presented by a 22-year-old schoolboy.