Honestly I've stopped giving a sh-t about this
If you believe the rumors they are monitoring computer activity to measure "productivity," you should be aiming to be in more useless teams meetings, not less. This kind of thing helps you stay off the monitoring software's radar
I've also stopped multitasking during useless meetings. I used to half listen and half work on actual useful tasks on my second screen. Now i save the tasks and do them sequential with teams meetings rather than in parallel, so that I can appear to be busy for longer stretches of time
If I get busy I go back to multitasking and declining useless meetings. But if you're not super crunched, its good to have this stuff to fluff out your schedule
Seems insane to me to set up metrics that directly incent people to be less productive, but I'm not a certified business genius like Charlie