Additional features, settings, or issues not covered by specific Microsoft Teams categories
I have resorted to using the Microsoft Edge browser for macOS, launching Teams via URL (https://teams.microsoft.com) then copying and pasting any Teams meeting URLs from Outlook into a second browser tab after authentication. Select cancel when it tries to launch the Teams app. Then select use Edge browser for meeting. Works flawlessly. However you do lose some functionality like virtual backgrounds and some of the attendee video layouts. You can screen share and change audio/video configurations like the app. Just be sure to go into your macOS security settings and allow the Edge browser to use your camera and microphone as well as privacy settings to allow for sharing your desktop and/or apps. Once it's setup it works well and uses almost no system resources. At least Microsoft got it right with their browser. Have to say, I actually like Edge on the Mac and it also has most of the same plugins that Chrome does. Which is a bonus as Chrome is nearly as bad with system resources nowadays.
Good luck!