Find my notification

Hello, I am needing help because I am having trouble with random notifications popping up from Find my. I used to share my laptop with my ex but we broke up so he doesn’t use my laptop now. We would just use his Apple ID for my laptop but when we broke up I signed into my iCloud and changed everything to under me and even made him remove my device from his iCloud but I’m still getting his notifications from Find my. For some reason any time someone shares their location with him it comes to my laptop but when I click on the actual app or the notification itself, that person isn’t actually sharing it with me and I can’t see their locations from my laptop so I’m not sure why km getting the notifications. I also do get notifications saying to log into icloud and it’s his email that pops up so am I missing something? Please help!?