[mFixman]

I was able to remap my Bixby button on my previous Samsung Phones. I usually put it to Google search and double click to the camera.

The newer phones (since ~2019) don't have Bixby, and Google Pay launches automatically when touching an NFC posnet.

[rightbyte]

You can if you accept the Samsung Bixby ToS. Or did you find a way around that?