No, there is no pattern. The last one happened when I got a new Android phone. I logged in on my work account and my personal account, and the work account got suspended. It said "suspicious app", but the only app I used it with was Google Meet. The personal account was used for much more, but didn't get suspended. I half suspect that they deliberately have false alarms so they can act like they're more secure, but it's more likely just a horrible, unaccountable AI.
I treat all Google accounts as throwaways now and don't use the work email at all because I want to know that I can actually receive emails that are sent to me. That's a huge problem even without randomly losing access, because their spam filter has a ton of false positives and those emails don't get forwarded to my real address.
