Disable Instant Lock on MacOS

Instant lock is the name of the feature which locks the machine when the Touch ID button is pressed.

You can disable it with:

defaults write com.apple.loginwindow DisableScreenLockImmediate -bool yes

Or turn it back on by changing that yes to a no.

There are options available for that loginwindow here in the Apple documentation.

See keyboard - Macbook Pro - Disable lock on touch id press - Ask Different