Glad you found a solution -- can you let us know where that is in the menu? Since I obviously can't have every device in existence, I have to rely on what's on fthe web, which admittedly can become obsolete relatively quickly.
I have a Galaxy S7 on Verizon. After my latest "UPDATE" my phone is again hanging up as I pull it out of my pocket. Plus it tells me it sent the caller a Message. Sending a message to a land line is a great feature. I believe two updates ago all the menus changed, Answering and Ending Calls is now under Accessibility. However auto answer, automatic answering when on bluetooth was turned off, so that may no longer be the fix.
When I call myself I have to swipe to decline. Don't see how pulling the phone up out of the pocket swipes it left to right. I had answer by pressing the home button turned off. Will try turning that on.
Also the latest update keeps sending me notifications when I open an app, like new features I don't want to know about and will never use. Or I like the notification to turn OK Google On. You must accept, then teach it ok google, then it will search, then next time you must reteach google your voice. Probably because I only want to use OK Google when I start the app up. I do not need my phone to run when I am not using it.
If I can't get my phone to stop hanging up, or must keep is outside my pocket in order to do so, then I don't really need a mobile phone. I don't carry a purse.
SAMSUNG-SM-930V, SM-G930V, HW Rev0.6, Android 8.0.0, Samsung Experience version 9.0, Kernel
3.18.71,