According to a Display Supply Chain report, Apple could release a foldable iPhone as early as 2024, though "key technology and production issues" could push things into the year after.
https://www.notebookcheck.net/Apple-could-launch-a-foldable-iPhone-as-early-as-2023-if-it-s-able-to-solve-key-technology-issues.584969.0.html
That's BS. Apple waits for displays to cost pennies and them to price the phones at 3000 dollars.