I think you should add a choice for each participant where you can specify whether you want a calendar booking to be sent as a booking directly to the participant's calendar. Today, just sent an email which means you must manually open the meeting and save it in your calendar. I am used to get booking directly to my calendar from many other systems and it works very well and is a sustainable standard that you should use.
Thanks for your feedback. I'm putting this in the quality backlog initially although I expect it might be slightly too complicated to solve technically to be handled there. If it gets enough votes I will take it up in a quality backlog meeting and see what happens.
The top ideas with status Quality Backlog are discussed on a regular basis with the design team. These should be minor development, and could include hygiene factors, little things that create a wow effect and ideas that could have a positive effect on a lot of users.