Let’s see, there’s plenty time for me to be both right or wrong.
Some fans can only appreciate an attacking fullback that puts fan visibility enduring crosses - what Wan Bissaka brings by making a whole Side of the pitch near negligible to an opposition is just very underrated among certain fans to both a team and a manager.
He nearly provides everything of both a defensive full back & an attacking fullback except the final delivery of an accurate cross/shot &/or occasionally getting beat further up the pitch where he doesn’t rush to make up for the loss.
Other than that I have seen him improve/be good in : his dribbling, his progressive passes being Paced and either straight or further from feet, his skill, his ability to beat himself outside tight areas, ball retention, his back of the post defending (was very weak at this), his defensive heading, consistent amazing goal line clearing body blocks whilst already being the world’s best unquestionable 1v1 defender.
I’ve seen enough world class performances against world class players where the world class attacker could have all day and wouldn’t get past Wan Bissaka that month - Mbappe, Mane, Grealish, Mitoma, Neymar and many more.
I rate Dalot though and what he brings to the team- which is different to AWB and that is why dalot is useful to Manchester United.
Sure!