Samsung Galaxy Note 10 Layout Manual page 6

As the Power and Bixby functions have now been intergrated to one button it may seem tricky
powering your device on or off. Fortunately, there are a few different ways of powering your
Galaxy Note10 off. Either through your Quick Panel, using the hard keys or activiating Bixby
Voice and saying "Turn off the phone." Click one of the drop down menus below to learn all
the different ways of powering down your Galaxy Note10.