You can't fully change the name "Bixby" as it's the official name of Samsung's virtual assistant, which is tied to its branding and system functions. However, you can modify the wake-up command to a custom phrase, but it will still be linked to the "Bixby" name internally. This limitation exists due to both technical reasons and the fact that "Bixby" is a proprietary product name, so the custom wake-up command allows some personalization without altering the assistant's core identity.
