I have the buds + which still work perfectly, and I recently got the buds pro with a s21 ultra.  The pros fit my ears no problem and the sound was great. The range was great.  This pretty much stopped after the Feb update.  The range was short, probably less than 8 ft.  They earbuds never synchronized, one bud would constantly drop, sometimes right sometime left.  The worst was the volly back and forth, almost gave me motion sickness.  I waited until the next update just the other day, in March.  They are a little better but not much. Very unstable.  If you even tilt your head one bud will drop, doesn't even make sense.  The buds + work perfectly in the exact same situation across all devices.  Sad to say I can't use them at all.  I was hoping to use them for Zoom or Teams calls but no way.  Is anyone else experiencing this?