“I found an MS article mentioning how Teams uses memory because of this Chromium feature due to easier development.”
A 16 inch i9 MacBook Pro with 16GB of RAM, flattened by a chat app. Microsoft’s answer was a build for Apple silicon and a vague promise of fixes “coming” for Intel Macs. Teams is on the machine because the company bought Office 365, not because anyone chose it. Microsoft knows you can’t leave, and the performance shows it.