City set up is very different due to Bernardo Silva and Foden are comfortable drifting in central position to create midfield number advantage, then allow Alvarez to push up in CF in certain situation.
With us last season, when Weghorst played in midfield, Bruno was shifted to the wing and he was mostly nullified there. The other wing is either Sancho, Garnacho, or Antony (vs Liverpool) are just your typical wing attacker where they stay wide. Weghorst couldn't keep up with the pace of our transition. Strangely enough if Fred, or Sabitzer played (Eriksen was out injured for most part during this period), they were the ones to join the attack, where as Weghorst usually stuck in deeper no man land position. That's the key difference to Alvarez who joined Haaland at the tip of City attack.