Does the gospel of John put words in Jesus' mouth?

"Notice, too, that the narrator puts his own gloss on Jesus' words [in John 7:39] - namely, that he was referring to the Holy Spirit - but he scrupulously refrains from putting this gloss into Jesus' mouth….New Testament scholars are far too ready to assume that the evangelists, and John in particular, felt free to put words into Jesus' mouth if they thought that something was what he would have said and was consonant with his other teaching. But this is not what we find in John. Instead, when John has some interpretation to give his readers, he distinguishes his own interpretation from what Jesus actually says, as in this passage." (Lydia McGrew, The Eye Of The Beholder [Tampa, Florida: DeWard Publishing, 2021], 76)

Lydia McGrew also has a lot of good material on John and the other gospels on her YouTube Channel.