

Regarding the feature the steps in the guide state you'll need to choose 'Window' then choose the app to share the screen.

If you’re unsure whether your Mac started up in safe mode, you can use the System Information app to check the mode. On either the first or second login window, you should see “Safe Boot” in the menu bar.Turn on or restart your Mac, then immediately press and hold the Shift key until you see the login window.Start up your Intel-based Mac in safe mode When the login window appears, you should see “Safe Boot” in the menu bar. Press and hold the Shift key, then click Continue in Safe Mode.Press and hold the power button on your Mac until “Loading startup options” appears.A Mac is completely shut down when the screen is black and any lights (including in the Touch Bar) are off. Wait for your Mac to shut down completely.On your Mac, choose Apple menu > Shut Down.Start up your Mac with Apple silicon in safe mode

