Force Quit & Lock Screen

No. Pressing Touch ID won't force quit the application.

You have to press the command + option + esc keys simultaneously.

Quote:

MacBook Pro (15-inch, 2016) and later and MacBook Pro (13-inch, 2016, Four Thunderbolt 3 Ports) and later feature the Touch Bar, which changes automatically based on the application that you're using to show you relevant, familiar tools and controls. On these models, the Esc button appears on the left side of the Touch Bar, in the same place the Esc key appears on traditional keyboards. MacBook Pro (16-inch, 2019) has a dedicated Esc key, separate from the Touch Bar.

https://support.apple.com/en-us/HT207358

Lock Screen

Locking the screen temporarily, without logging out.

For details:

https://support.apple.com/guide/mac-help/require-a-password-after-waking-your-mac-mchlp2270/mac

HSKang wrote:

Is press down the Touch ID to shut down?

Quote:

Unlike with older Mac notebooks, holding down Touch ID on your MacBook Pro or MacBook Air doesn't display a dialog with options to Sleep, Restart, or Shut Down. You can find these options in the Apple menu. If your Mac is unresponsive, you can hold down Touch ID for six seconds to force a shut down. Note that you'll lose any unsaved work if you do this.

https://support.apple.com/en-mide/HT207054

Lock Screen

Just the display/screen shuts off.

Sleep

Display/Screen and CPU shut off.