Short answer
A loot filter should match your stage of progression. Early players need readability without hiding useful bases, currency, and upgrades; later players can tighten the filter around their build and farming route.
| Stage | Filter goal | Avoid |
|---|---|---|
| Campaign | Keep upgrades, currency, and useful bases visible. | Using an endgame-strict filter too early. |
| Early endgame | Highlight build-relevant bases and currency. | Hiding items before you understand their value. |
| Farming route | Reduce noise around the content you repeat. | Copying a filter made for a different economy or build. |
| Review | Update after patch or build changes. | Assuming one filter fits the whole season. |