https://www.cnet.com/news/samsung-will-soon-let-you-remap-the-bixby-button-on-older-phones-too/

Devices will likely include the Galaxy S8, Galaxy S9, Note 8 and Note 9. Samsung didn't immediately respond for comment about the date the software update will be released.

Samsung said the new feature is just another way to personalize Bixby and make using it more convenient. The feature is similar to how users can open Google Assistant by squeezing the Pixel 3 or building routines on Siri Shortcuts