Ever since its appearance in Android Pie, I always consider 2 button navigation is a bad attempt by Google trying to play catch-up with the fad generated by the iPhone X. However, due to a bug with A13 QPR2 it had to be temporarily removed and many were not happy about this. So, 2 button navigation users, may I ask why do you prefer this method? To me it makes you do more for the same action whilst doesn’t save any screen space.
I don’t feel like testing it out on my own device, since haven’t had one that hasn’t gotten burn in yet. Especially with how expensive phones have gotten that I’ll be using it beyond the usual two year upgrade path.