I think some people made their mind up on him 2 years ago.No. Being out for a long time is not over the minute you get back. I don't know why you struggle with this so much, Guardiola said it would take 20 starts until he looked like the old Mendy and he's about 10 in.
The man has literally told you what's going to happen and you're too blind and impatient to see it, even though we've seen it already with Gundogan and KDB.
Also Zinchenko returned from his surgery 4 weeks ago and returned to training a month before that. If he's still got a niggle then why didn't it affect him against Sheffield, Zagreb, Oxford, Everton or Port Vale?
He's been the most defensive of our fullbacks, and he's been our best fullback defensively. He's been restricted attacking wise to a few line breaking passes and the occasional run forward (all which he's been more than adequate at). And yet people are still posting about how he's a great attacker and an awful defender.
Best not get caught up debating with those people if I were you.