Cleaning success does not establish surface compatibility. Abrasives can affect glass, coatings and printed markings.
What the observation means
A product approved for a metal sink may be unsuitable for a cooking surface. Repeated polishing can also make controls harder to read.
A useful next step
Use the hob's specified cleaner and a suitable cloth. If a mark resists approved care, seek advice before increasing force. Do not sand the surface or cover worn markings with guessed labels, especially where power levels or Off positions are no longer clear.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.