How to totally disable Bixby on your Samsung Galaxy phone or tablet
There is already an app to remap the Galaxy Note 9's Bixby button
Note 9 How To Disable Bixby Button or Change Bixby Button - YouTube
How to Disable Bixby on the Galaxy Note 9
How to disable Bixby button without creating a Samsung account or updating the Bixby app on S9+: literally cut the button out of your phone case. It works perfectly. : r/samsung
Galaxy Note 9 could get option to disable Bixby key by end of September - SamMobile
You can't turn off Bixby on the Note 9 - The Verge