It can also play into throwing accuracy some, particularly in wet weather. But it's not anything that you can't just see whether it's a problem with your own eyes.
Chase Claypool's weight is bothersome to me. That's like a 6'4" running back. He should be closer to 225. I mean you look into WR body mass index and you start getting below 26.5 or above 28 (or maybe it's 28.5...) and you have a WR that has the odds against him as far as producing much more than than a WR 3 or 4. I know this isn't fantasy, but it ought to give you an idea of what kind of contributor he'd end up being. I don't remember the percentages, but it's very low (less than 10%).
He has no incentive to do it, especially since the things that he's best at are not on display there and the things that he's worst at(arm strength) is on display and in direct comparison with 3 other players with much better arm-strengths. He's the consensus no. 1 pick and he won't lose that position even if he did nothing until the draft.
Bengals would be crazy to pass on Burrow.