What other sharing settings may prevent Screen Sharing from being turned on?

Screen Sharing is a feature that allows you to view and control the screen of another Mac on your network. However, Screen Sharing cannot be turned on if Remote Management is already enabled on your Mac. Remote Management is a more advanced feature that allows you to remotely manage Mac computers in a commercial or business environment. Remote Management and Screen Sharing are compatible with Virtual Network Computing (VNC), but they cannot be used at the same time. To turn on Screen Sharing, you need to turn off Remote Management first in the Sharing settings of System Settings12. The other sharing settings, such as Remote Login, Media Sharing, and Remote Apple Events, do not affect Screen Sharing and can be turned on or off independently. References: Turn Mac screen sharing on or off - Apple Support, Share the screen of another Mac - Apple Support