I don't ever seem to recall that being much of an issue.
He's susceptible to getting his pocket picked from time to time and one could argue he's weak in board battles at times, but just controlling the puck off the wall isn't really a thing.
He's a more methodical player who doesn't really waste movements. If you watch his highlights you'll see that even when he's scoring or creating offense he's not doing it by using any fancy dekes, blowing by guys, or being too complicated. He almost always slows the play down and is in control while making decisions. He's smooth and deliberate. Sometimes that looks like lack of effort and rubs fans the wrong way, and that's completely understandable because there are times you'd like to see a bit more.
I wouldn't say he floats around because that implies some aimlessness but he definitely glides around at times looking for holes, especially on the rush. You definitely want him being fed the puck in transition vs him trying to take one-timers while you're already established in the zone. His accuracy when shooting in transition is very good and can place his shots nicely, even if it's a 1 on 1 and he has a defender in front of him.
Defensively I think he is pretty sneaky at times, creating turnovers on the backcheck with a nicely time stick lift but he's never going to outmuscle guys or be overly physical. He'll be in the right lanes most of the time and just contain.
If you watch all of his goals from last season you'll see that he's generally looking for soft spots to take a wrist shot, and he's best when in transition and someone gets him the puck.