Reminder Window has issues, just copy from other cal tools what works:
- if a meeting has an online link, make it clickable in reminder window directly
- instead of “remind again in 30 min”, add “remind me x min before meeting” options. Why should I as the user have the mental load of calculating the duration. I usually need the reminder again 2 or 5 min before the meeting.
Again, just look at BusyCal, Outlook and all the others.