He seeme to have looked more lively with each appearance, which is promising.
His obvious stand-out trait is cutting inside off the right-flank on to his left-foot to shoot.
Wondering whether he could play in the left seems a bit daft. It's true he could be good at crossing with his left-foot, but I'm not sure he'll have the pace required to get to the byline to do that.
It's a bit unfortunate that Mbeumo, Amad, Dorgu and Lacey are all left-footers, especially while United's main right-footed attacker in Cunha is still so inconsistent. Hopefully Gabriel will stick around and in a couple of years be another option there, but in the mean-time another right-footed wide forward could be useful.