I don't think the weight is as big of a factor as it used to be int he past. If he's 6'6 265-270 perfect, you'll feel better about him against the run, but even if he's only 245, it doesn't matter. 60% of snaps come in Nickel, he'll be flexed, or running a route most times anway. Rememeber years back, the Giants weren't sure what to do w/ Evan Engram. They drafted him back in 2017. The NFL hadn't shifted to what it is now, currently and so he was seen as an undersized weapon.
He spent all 5 years w/ the Giants but had his 1st and 2nd best season on his 2nd team in Jacksonville. Where their offense was more inovative and required him to play inline less.