My name is Thomas Krocker from Germany. The following text was translated using translator software. I apologize in advance for any errors in the text. Thank you for your understanding.
My idea: Thunderbird's calendar has a reminder function for appointments. When I plan an appointment, I can set that I would like to be reminded shortly beforehand.
How about making the reminder dates visible in the daily schedule. For example: “Next reminder on April 30, 2024 12:30 p.m.”
The advantage of this is that the user can plan even better and more precisely. That would be a great thing.