Thank you for the feedback. Changing the default setting is under review by the feature team, and your feedback is very useful as they are evaluating.
An error occurred while saving the commentDave L commented
This really needs to be updated so that notifications are the default option - the notifications are not intrusive, i.e. no email, so it makes much more sense to have them on by default. Using teams as a resilience measure in the current crisis involves having people use it that are not necessarily tech savvy and also very busy so having to get them to turn on notifications for each channel separately is ridiculous