A loose handle can make opening a hot, heavy door unreliable. Avoid loading the door or pulling harder while the attachment is uncertain.
What the observation means
The handle may be fixed through a multi-pane assembly, so tightening visible parts without the correct procedure can disturb other components. The issue is different from a decorative trim rattle. Describe whether the whole handle moves or only an end cap appears loose.
A useful next step
Arrange model-specific advice before further hot use. Do not hang towels or other weight from the handle to stabilise it, and do not apply household glue. A cool door is safer to inspect externally, but internal fasteners should not be explored experimentally.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.