That's usually how it goes. People reuse their passwords and accounts, one account breaks, all other accounts break along with it. Then it's reported as a huge data leak targetting one of those potential sources, depending on what gets you the most clicks at the time. Currently ChatGPT. If their databases had been breached, I feel 100.000 wouldn't be the number.
Not saying it won't be, eventually. But this ain't it, it appears.