How to disable Bixby on Galaxy Note 9
Tap and hold a blank space on the home screen.
Scroll to Bixby home screen.
Toggle the switch on the top-right corner of the screen to disable it. ...
To disable the actual Bixby button, press it once to launch Bixby.
Tap the More icons (3 dots) located at the top-right corner of the screen.
... View more