Answer
Use chest pages as route leads, not guaranteed loot paths. Green and red chest behavior can matter for planning.
Chests are loot sources, but the important rule is to separate repeatable random loot from one-time chest rewards.
Use chest pages to plan supplies and weapon chances, but do not build a route around one exact chest result because random loot can vary.
For beginners, chest routes are only worth it after food, water, healing, and a return path are stable.