Weirdly, I like him better than Bernardo im that RCM position for only the fact that him being right footed means he can make underlapping runs and cross the ball like Kev does.
In both friendlies, you can see how akward it is for Bernardo to make that run as he cant cross on his right foot.
Id prefer Bernie perhaps LCM next to Grealish to cross or RW.
In that sense a good midfield duo is:
Bernie lcm, Kev rcm OR
Phil lcm, Lewis rcm
Each combo has a more defensive midfielder with a more attacking one, with the proper footed player on each side.