Issue:

The spacebar key on my HP ZBook Fury has lost its normal tactile feel. It feels mushy, soft, and unresponsive when pressed, especially compared to the surrounding keys. The key still registers input, but the bounce-back and key travel are off.

Questions:

1. Is this issue typically caused by accumulated dust/debris, a misaligned metal stabilizer bar, or a failing rubber dome under the keycap?
2. What is the safest technique to unclip the spacebar keycap on this specific ZBook chassis without snapping the plastic scissor hinges or damaging the wire clips underneath?