So, Apple has done a nice job of making the sure the LED comes on when the webcam is in use. Unfortunately, there are still very good use cases for webcam cover

So, Apple has done a nice job of making the sure the LED comes on when the webcam is in use. Unfortunately, there are still very good use cases for webcam covers. - The computer has malware which controls the webcam. Although it's nice that the light correctly alerts you the webcam is in use, the malware can still get some pictures off before you can act. - You're not very good with computers, and so you don't know how to change Zoom settings, and you want a surefire way to ensure that you camera will not be active when you join a call. - You're just fine with computers, but the app has changed its defaults for some reason, and/or; - Your company mandates a new app which you're either not familiar with, or doesn't have appropriate settings.