A nearby heat source changes the appliance's environment and may affect operating demand. The first compartment to show a symptom does not necessarily identify the only affected part.
What the observation tells you
Required clearances and any installation provisions are model-specific. A warm side panel during cooking is different from burning smells or electrical damage. Do not attach insulation directly to the fridge-freezer or block its ventilation to shield it.
A useful next step
Record the timing relative to oven use and check the documented arrangement. Seek competent placement advice where needed while assessing the actual cooling symptoms separately.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.