One light stopped working and nothing else is affected
One dead light with everything else on that circuit working is a local fault, not a wiring problem in your house. Flip the switch and feel it. A switch that wobbles in the wall, or shifts behind a plate that feels tight, has worn out or torn loose from its box, and a new switch brings the light back. If the switch feels solid and a known-good bulb still does nothing, the fault is in the fixture, and an integrated LED panel with no replaceable bulb means the whole fixture gets swapped.
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