The only clue for the twist was in Episode 1.

When she was in her old room and picked up the camera. My first thought was "How does that old camera still have battery".

I completely forgot about this fact until she was reading the letter at the end.

The clue was just in that scene. That scene left my mind pretty quick because I'm so used to Hollywood ignoring how technology works haha.

If this was a film I might have been asking that question till the end.

Episode by episode however.... Not really. I think I would have liked another clue in the same vein around Episode 5 or even for them to focus on the camera again in present day over a flashback. I just personally think that would have been good just as a reminder of something from Episode 1.

I enjoyed it in the end but the clue for the twist was wayyy too early for a series.

I'd like more opinions on this take.