I hope Microsoft will switch the Teams App from Electron to a native solution for the mac. The current app is so slow and full of unresolved issues. I cannot even jump to the Teams chat with my keyboard or a mouse click, because there is a hidden Teams notification window in the foreground. Please do not make the same mistakes as Slack.
Would recommend you vote to push it up the agenda. Voting will also notify you if it is picked up by Microsoft. There is a growing call to move away from electron as the app is being more widely used. As said, there are several on the uservoice site so get as many people to vote as possible if you want to see this change