Ding. Ding. Ding. Ding.
As you and your colleagues use Teams more and more, you will start to get lots of notifications. Whether it's a really active inter-company chat or someone sending funny emoji's - once users are actively using Teams - what was first helpful to remember to check Teams can become annoying and frustrating as the dings distract you.
Initially the notifications whether it be a banner or an email was helpful to remember to check on chats or channels in Teams and find out if you've missed anything. However, as time goes on, checking activity in Teams becomes automatic. When you get to this place, it isn't as important to get as many notifications. On the contrary, the notifications become redundant.
Also - since everyone uses Microsoft Teams differently and some users are in different time zones, different countries or may not be online as often, you can also setup a notification for when they are available. This can also save LOTS of time so you can be alerted without constantly remembering to check.
Customizing your Teams notifications can save you time. Especially if you can eliminate extra emails and not have to delete them later. There are more than a dozen notifications you can turn on or off. Take 2 minutes to check them out and customize them to your liking.
For Teams users that you work with that have off hours or maybe are in different time zones etc, it can be very helpful to setup notifications for when they are online so you can collaborate real-time.