It would be helpful to opt getting a nondescript pop-up notification if there are any calendar/schedule changes. Granted, there is the option for an email to be sent notifying you that there is a message in the Jituzu inbox.
However, this isn't overly helpful when it doesn't imply if it is a calendar/schedule change.
This would be particularly helpful during the time of the pandemic when potential late-cancellations can happen more frequently.