At low speed traffic or stopped at intersections, splitting is what I do. At normal posted speeds, no. Some do and some bikes will overtake with traffic oncoming at the same time expecting cars to pull over for them as they ride the center of the road. That I don't do or like. Recently a biker clipped a car doing this because he was impatient and pushing his luck with the space available. Came off and landed on the wrong side of the road in front of a van who stopped in time but the truck behind didn't. The truck carried the van over the riders body killing him.
Sad for the van driver and trucker. Never take cagers forgranted.