Media Sharing is off

How to disable Media Sharing

Open System Preferences, go to General, then click Sharing.
In the list, uncheck Media Sharing.

How to disable on Monterey and older

Open System Preferences, click Sharing.
Click the lock icon in the bottom-left, then enter the account password.
In the list on the left, uncheck Media Sharing.

Time to fix

< 1m

What

Media sharing allows sharing of music, movies and TV shows between Macs. The recommended best practice is not to use the computer as a server but to utilize Apple's cloud storage to download and use content stored there if content stored with Apple is used on multiple devices.