Matte paint and powder-coated surfaces show shine when rubbed too hard. Use a damp microfiber cloth and a little time rather than a rough sponge.
Work with the material
Blot greasy marks, rinse the cloth often, and stop once the mark is gone. Keep touch-up paint labeled with the room and sheen.
Build a gentler habit
The finish stays quiet when cleaning does not become a second source of wear.