My side button already activates Google Assistant by default, press and hold. I actually don't want it to. I have the power menu option selected for it in settings yet it does Google Assistant anyway! No bixby anywhere to be found.
How did you get google assistance on your button? Since right now only bixby is possible. Unless you install 3rd party app that does the work.
I have no idea! Smart switched from Note20 Ultra, and it just works like that. I don't want it. Like I said I set my power button to be a power button. I wish I knew! All I know is that Google assistant is set as default and side key is set to power menu. Maybe try that? I'm still trying to figure out how to disable this because I want my power menu back! If I figure it out I'll update here. (See attached video so you know I'm not just pulling your leg)