Samsung lets Galaxy S10 users remap the Bixby button to launch third-party apps. Now, if you’re using an S8, S8 Plus, S9, S9 Plus, Note8, or Note9, you’ll finally get the feature, too. That is if you have Samsung Android Pie/One Touch UI software running on your Galaxy flagship phone. There’s also one more caveat. You won’t be able to remap the Bixby button to launch another voice assistant like Google Assistant or Cortana.
As we previously reported, you can’t disable Bixby entirely, either. What you can do is select which other third-party apps it can launch. You can configure it to launch either with a single or double press. The option you don’t choose will launch Bixby. And if you press and hold on the Bixby button, it’ll always launch Bixby.
Source: The Verge