We are continuing to work on this feature. As with Windows notifications, we are also doing work to give users the choice between Teams notifications & Mac notifications.
We will update you as work progresses.Dale commented
Add my voice to the chorus. Teams notifications on macOS are ugly, non-standard and not configurable at all. And look at the word spacing – it renders notifications unreadable if a message is more than a few words. Come on, Microsoft. Use the OS tools, please.