The gear worth going out of your way for — sorted by how easy it is to lose track of.
Nothing here is permanently missable. Beat the story and Chapter Select lets you replay any chapter with all your progress intact. So treat this as a priority list, not a panic list — grabbing things in-order just saves you a replay.
Spoiler level: names chapters, regions and game systems into the late game. No plot events.
Grab before the chapter seals
These areas or moments close when the story moves on and don't reopen until Chapter Select. The game rarely warns you.
Don't under-collect these
Not locked to a chapter, but spread thin across the whole game — skip them and your party quietly ends up under-powered.
If you only chase a few
The highest-impact individual pickups. Most come from Chadley — do the intel.