This one sparked a lot of controversy, and here are some of the secondary sources discussing it.
Mackenzie, R.J. (2022.)A popular theory about depression wasn’t “debunked” by a new review. Neuroscience from Technology Networks. Retrieved June 29, 2023, from http://www.technologynetworks.com/neuroscience/articles/a-popular-theory-of-depression-wasnt-debunked-by-a-new-review-it-got-debunked-years-ago-363986 [general audience]
Almulla, A. F., & Maes, M. (2023). Although serotonin is not a major player in depression, its precursor is. Molecular Psychiatry, 1–2. https://doi.org/10.1038/s41380-023-02092-1 [scientist to scientist]
El-Mallakh, R. S., Doroodgar, M., Elsayed, O. H., & Kidambi, N. (2023). The serotonin theory of depression. Molecular Psychiatry, 1–1. https://doi.org/10.1038/s41380-023-02091-2 [scientist to scientist]
Ghaemi, N. (2022).Has the serotonin hypothesis been debunked? Psychology Today. Retrieved June 29, 2023, from https://www.psychologytoday.com/us/blog/mood-swings/202210/has-the-serotonin-hypothesis-been-debunked [general audience]
Jacobsen, J. P. R. (2023). Serotonin and depression—An alternative interpretation of the data in Moncrieff et al. Molecular Psychiatry, 1–2. https://doi.org/10.1038/s41380-023-02090-3 [scientist to scientist]
Moncrieff, J., Cooper, R. E., Stockmann, T., Amendola, S., Hengartner, M. P., Plöderl, M., & Horowitz, M. A. (2023). The serotonin hypothesis of depression: Both long discarded and still supported? Molecular Psychiatry, 1–4. https://doi.org/10.1038/s41380-023-02094-z [author response to criticism: scientist to scientist]
Robinson, J. (2022, August 31). The serotonin theory of depression: How the media got it all wrong. The Pharmaceutical Journal. https://pharmaceutical-journal.com/article/feature/the-serotonin-theory-of-depression-how-the-media-got-it-all-wrong [general audience]