How to delete all calendar appointments booked by terminated users?

I'm seeing various blogs/posts on this general issue that go back around 10 years, perhaps more.

Does Microsoft have a way to deal with this that handles the necessary nuances? If not, what is the reason for not doing this?
- for example, organizer long since deleted and not under litigation hold... was removed midstream of a meeting series they organized. Meetings occurances that were held should not be deleted from peoples calendar (history), but future (based on an as of date perhaps) meeting occurances need to be rejected (by attendee) or the meeting cancelled (vs just deleted) or the "end date" of the series adjusted properly.
- just highlighting some scenarios, ... I'm sure there are more nuances to be handled.

Note, I have successfully used Remove-CalendarEvents after restoring a deleted user that was deleted within the past 30 days. However, this too does not seem ideal, as that is monkeying around with the deleted user's mailbox, which may need to remain "static". It would be good if at least an admin (but preferably self serve by a user), could clean up calendars after an organizer is gone.