Galaxy Fold: The real deal with Samsung's screen crease, notch and air gap
https://www.cnet.com/news/galaxy-fold-the-real-deal-with-samsungs-screen-crease-notch-and-air-gap/
People also had words about the air gap, the little loop of open space at the Fold's hinge end that's wider than the end where the screen sides snap shut.
Having used the Fold every day for over a week, I wanted to address three of your biggest concerns and share what they're really like. Let's start with the crease.