Before injury he had 5 or 6 of his best games in a Juventus shirt, actually resembling a good fullback.
He didn't

He played 6 serie A games total. He had very good first haves against Milan and Inter, but unfortunately he got injured in 40th/45th minute in both of them. He was good in the match against Lecce, the one we won 4:0, and that was it.
In the 3 europa league matches he played, he was as bad as the rest iirc.
Very good performances in the total of 85 minutes he played against the top 2 teams in Italy were indeed promising, but way too little for any conclusion. Those 85 minutes don't outmatch the awful season he had last year and the very little promise he's shown in the season before that.