Gimmick receivers don't have 1400 yard seasons.
San Fran is a gimmick offense. Purdy is limited, the weapons have been off-the-charts with McCaffery, Kittle, Aiyuk, and Samuel...which has led to a lot less focus on Deebo, epecially after they threw and ran him into the ground (as they then did with McCaffery).
The talent is undeniable. He needs to go to a place where he can get more touches, get in rhythm.
I'd go after him and a second WR in FA, then grab BPA in the first round or trade down if the haul was there. Personally, if the Pats get the #3 or 4, the only players there worth that pick look to me (with my limited view, admittedly) to be Hunter (I don't think he's the best WR in the draft, but I'm not in love with any of them) or Jeanty.