I accidentally started rewatching a different cut after having only ever watched the final cut. When that noir style voice over started going, I was so confused

I accidentally started rewatching a different cut after having only ever watched the final cut. When that noir style voice over started going, I was so confused. It was so bad I was sure it couldn’t have been part of the film I had previously enjoyed. Researching it after lead me to the same conclusion as you.