Tip: You can disable Bixby's voice wake-up feature with its quick toggle - SamMobile
Bixby Voice Wake-up is Not Working? Here is How to Fix it
Galaxy S21/Ultra/Plus: How to Turn On/Off Bixby Voice Wake-Up Recognize Voice - YouTube
Samsung Support - Activate Bixby using just your voice with Bixby voice wake -up. How to setup: 1. Go to Bixby home by tapping the Bixby key or swiping right on your home
Tip: You can disable Bixby's voice wake-up feature with its quick toggle - SamMobile
Enabling the Voice Wake Up Feature on Bixby | Samsung Australia