Correction - This article infers it’s the max 9. BBC reports its one of the “older” 737s (but not old enough that this should be expected)
https://www.bbc.com/news/world-asia-67968526
It’s a 737-800, not a MAX.
https://www.reuters.com/business/aerospace-defense/japan-ana-boeing-737-800-flight-turns-back-due-cockpit-window-crack-2024-01-13/