See discussions here:
https://answers.microsoft.com/en-us/msoffice/forum/all/outlook-list-view-in-office-2019/62c023a8-3377-4fd6-a609-5db49f31ccd5

Basically, to repeat, it would be good to create a list view with individual events (even from a series) listed out. Often times, individual events in a series has specific info in each event, so canceling the entire series would lose that info. Having a list view to search, filter, and select events to cancel would be great. As mentioned, using the search feature only returns the entire series, but not individual events.