Let’s play a game. One of your customer calls you and ask for a meeting (virtual or in person). Before answering this request, you have to look at your calendar to see your free/busy time. It’s a time consuming and error prone process. What if your favorite calendaring app could generate a map of your weekly schedule with all sensible information masked out, like in the following example (made with Fantastical). This could be sent as a PDF file to the customer, would save a lot of time. It’s surprising that, to my knowledge, no calendaring app offer this option. I would pay to get this.