Application Switching on Mac OS
I often find that Teams will not take focus when using the App Switcher feature on Mac OS (i.e.: ⌘ + Tab, à la the Task Switcher functionality in Windows). I find I have to click the icon in the dock, which will take my to the workspace where the Teams client window resides, but then I have to click the icon in the dock again to get the app to take focus. It is literally the only app on my machine that misbehaves in such a way, and it's really frustrating.
Kevin Fordham commented
If you added up all the other bug reports that are nearly identical to this one, there would be more than 6 votes currently. They mostly boil down to being a poor macOS citizen. E.g, when I click the dock icon (app is already opened) or select Teams in the application switcher, it doesn't actually go to the open Teams Window. This is unlike basically every other application on my Mac. One reason is likely the lack of using the Notification API and instead using some hack involving the hidden "Microsoft Teams Notification" window. I really wish you guys could get this right.
If multiple (virtual or physical screens/desktops) then this might be https://microsoftteams.uservoice.com/forums/555103-public/suggestions/42418444-spaces-and-command-tab-on-mac or https://microsoftteams.uservoice.com/forums/908686-bug-reports/suggestions/42377626-mac-command-tab-doesn-t-work-when-using-multiple-d
Alexander Clifton-Melhuish commented
Related to this, if I'm on a call (which opens in a new window) then clicking on the Dock icon reopens/brings to the front the main window, not the call window. This is very frustrating. If any window is currently open, then clicking on the Dock should bring that window to the front - not open the main window.