Well, I don't think anyone ever thought once that Mbappe was a bad or useless purchase, but it's simply that he had to find his place within the team, he's certainly young and is fitting in, in fact he seems to have really integrated,Now he just has to prove how many goals he can score
Let's be honest to ourselves. Kylian Mbappe didn't blend into the playing style of Real Madrid immediately he arrived the club. Though he scored in his first game which was in the 2024 UEFA Super Cup game against Italian club Atalanta but after soon after, he began to struggle at the start of last season which made many begin to question his quality, while others said he's very unlikely to repeat the scoring records he had with his former club PSG. But it was later that he started scoring many goals.
This season, Kylian Mbappe has started well and have been very prolific which I expect him to continue till the end of the season. I hope he ends this season with major trophies like the Spanish La Liga and the UEFA Champions League title.