Privacy Mode for Fluid blanks out the host machine's physical displays and blocks inputs from physical keyboard and mice attached to the machine. Privacy mode will also automatically lock computer after a user's remote session ends. This is perfect for when you need to remotely work on sensitive documents and media. Great for shared environments and hybrid work. 

To enable privacy mode connect to your machine and click Remote -> Privacy Mode.

Teams users can also enforce Privacy Mode via Connect Settings:

Privacy Mode is currently available when connecting from a Mac to a Windows or Mac machine.