The original thread from @shilocase has been locked (https://techcommunity.microsoft.com/t5/microsoft-teams/teams-is-killing-my-mac-every-day/m-p/2790094) so I'm forced to start a new one. I have the same issue like many others, it has been described over and over again. I'll repost the solution here , kudos go to BenS_848
I'm sitting on a Intel Mac. The solution that helped me is described on page 21 here: https://answers.microsoft.com/en-us/msteams/forum/all/ms-teams-helper-using-up-100-of-cpu-macbook/93...
I deleted the this file:
and now teams is working like a charm. Even my fan is gone and I enjoy the silence. No side effects
This needs to be done after each update again it seems.
This might even be some hint for the developers that trying to figure out the issue over the last months (years?). So if anyone at Microsoft is listening please be so kind and forward this.
Regards and hope it helps you too.