Amir Syarif Siregar’s review published on Letterboxd:
Fans of Shawn Mendes will find lots to enjoy here. Unfortunately, there is not much in 'Shawn Mendes: In Wonder' for anyone else. The documentary only shows run-of-the-mill problems like imperfection mentality, insecurity, vocal problems, and homesickness, but refuses to reveal anything new, authentic, or interesting about the life of an incredibly popular musician. There is an attempt to add a touch of drama with a scare over Mendes' voice in the last act, but it does all come across as melodramatic rather than an actual concern. Shallow.