Yes, you can change your phone so that the "Bixby" button does something else of your choosing instead of opening Bixby. However, you will have to change it again aftery every phone update

I do not remember exactly where I found the instructions to reassign the Bixby button, but I found it via a Google search.
You can also disable Bixby. Settings>Apps>Bixby Voice
Whenever I want the help of an assistant, I just say, "Hey Google." The Google lady is unobtrusive, helpful, and can be just as lighthearted as you want her to be. I've even had conversations with her while on a long desert route.
-----------------------------------------------From Google Search----------------------------------
Showing results for change your phone so that the "Bixby" button does something else of your choosing
Search instead for hange your phone so that the "Bixby" button does something else of your choosing
Go to Settings-Advanced Features- Bixby Key and change single Press to Double Press for Bixby. You can use a single press to open another app or Run quick command such as Answer Phone or Daily Routine.Dec 19, 2022
Bixby - Samsung Community
samsung.com
[
eu.community.samsung.com] › bixby › td-p
People also ask
Can I make the Bixby button do something else?
How do I change the Bixby button function?
Change Bixby Key Settings (Android 9. x or newer)
From the Bixby screen, navigate: ...
Bixby Key.
Select 'Single press' or 'Double press' to open Bixby. ...
If preferred, select an app or run a quick command when pressing the Bixby button by tapping the switch to the right of either option to turn on .