| User type | Fn Lock useful? | |-----------|----------------| | Excel / CAD / IDE power user | ✅ Very useful | | Casual browsing / media | ❌ Not really | | Gamer (uses F-keys in-game) | ✅ Yes | | External keyboard user (full-size) | ❌ Unnecessary (already have dedicated media keys) |

Suddenly, the world of his laptop shifted. The top row of keys—his trusty soldiers—had defected. F5, which once refreshed his research tabs, now stubbornly dimmed his screen. F11, his gateway to full-screen focus, did nothing but blast a sudden, deafening chord of orchestral music through his headphones. He was trapped in the . The Conflict

FLOCK

Fn Lock toggles the of the top-row keys (F1–F12).

Based on the clue, the answer is .