10-10-202211:26 PM - last edited 10-10-202211:28 PM
Hi. I've not used Bixby either and always think I should give it a try. I did have a look to see if I could find something that might help you.
If you go to Settings, Accessibility, Interaction and Dexterity, then Voice Access. It looks like you have to turn on Voice Access with the slider. There's then another option for a Settings menu which mentions "Activate for incoming calls". Also, at the top of that Settings menu is a help section about "Voice Access Commands". Scrolling down the list of "Basics and Navigation" it suggests it recognises the phrase "Answer call". I can't say if this will do what you are expecting but I hope it helps you.