What's funny is, when he played for Chelsea, I'd posit 80% of his current supporters didn't rate him nor understand why Chelsea fans rated him so highly. Now he's signed, suddenly they're attributing quality and and ability he doesn't have to him.
I think Chelsea fans rated him the way we rated Lingard for a while i.e because he was a home-grown, academy boy. Trouble is, he's just not that good, he's an average player who has decent physical attributes.
Issue is, he's not our homegrown player so he has no history nor goodwill because he's on £200k per week, cost £50m and is wearing our #7 shirt.
From the pre season games I've seen, he's looks OK but nothing stand out. Basically the same I thought when he was at Chelsea.
Be honest with yourselves, did you fear Mount when he lined up for Chelsea? No. You didn't.