Per our test, even if the attendee has accepted the event with reminder.
The reminder did NOT pop up on the attendee’s screen at the reminder time.
Only the host will see the reminder.
Is it a bug? or is it designer to do so.
Best answer by ray20
I checked the help guide, as below:
For a task, the reminder will be in effect from the specified date and time until task completion or cancellation. The task reminder will be visible to the user to whom the task has been assigned.
An event reminder, which is visible to the owner of the event, is in effect from the specified date and time until the owner dismisses the reminder for this event.
So the system is designed to do so.
But I do wish can remind all attendees.