Hi @Grabiel Montero ,
I am afraid to tell you that it is not supported to notify meetings in calendar through Teams client.
In this case, we highly recommend you vote for it in Microsoft Teams UserVoice (The link is: https://microsoftteams.uservoice.com/forums/555103-public/suggestions/18979909-meeting-reminders#{toggle_previous_statuses}). Microsoft will always focus on customer’s feedback and experience. Some new features would be added to the services based on customers' feedback in the future, and your good ideas will be very helpful for them to improve the service.
Your time, understanding and cooperation will be highly appreciated.
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