Residue or a surface effect may be involved; appearance alone does not establish permanent damage. The product and method used are relevant.
What the observation means
A cleaner suitable for a worktop may not suit ceramic glass. Too much product or incomplete removal can leave a film, but repeated abrasion is not a safe way to determine the cause.
A useful next step
Follow the appliance's final wiping instructions while cool. Retain the cleaner label if the change persists. Do not mix chemicals or polish through the printed surface, and report any accompanying heating or control change separately.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.