Alvarez does not have a body like Haaland and he does not have same skill set like Haaland has. They are different players and can contribute differently to the team. We should recognize good contribution and effort from Alvarez for Manchester City. He at least has good performances and did not waste scarce opportunities were given to him by a few matches missing Haaland. When Haaland returns, Alvarez will have to accept his position on bench and wait for other chances.
They have their own merits, although they have nothing in common, what I want to say is that all Manchester City players are of almost perfect average quality, despite missing a few people due to injury, the substitutes that Manchester City have can play perfectly and this is not the case. owned by another club in my opinion.
With the quality that Julian Alvarez has shown in the last two games, Pep Guardiola will surely give him more playing time. Julian Alvarez and Erling Haaland had a duet against Nottingham Forest, they were able to show quite positive results when they played together and won big wins.