https://techcrunch.com/2017/09/18/you-can-now-disable-samsungs-devoted-bixby-button/

The Galaxy S8’s devoted Bixby button was one of the least popular features on an otherwise well received phone, owing in part to the fact that Samsung’s smart assistant was still half-baked at launch. Unsurprisingly, the feature also made its way onto the Galaxy Note 8, though, by that time, the company had finally rolled out Bixby’s voice functionality for both devices.

This morning, a handful of scattered reports have noted an update letting users disable the button’s functionality — a move we’ve since directly confirmed with Samsung. When enabled, the button launches into the Bixby Home hub and when held down, it fires up Bixby voice. The new setting disables that quick tap hub launching feature, though Samsung doesn’t appear to have given users the ability to reconfigure it to launch different apps, an oft requested update.