A damaged door assembly can affect containment, closure or safe access. The fact that the dryer still starts does not establish that the damage is harmless.
Understanding this situation
Cracks, loose glass or displaced parts can worsen during movement or heat. Tape and household adhesive do not confirm that the assembly remains suitable for the appliance.
A useful next step
Keep the dryer unused and avoid handling sharp edges. Provide the full model and an accessible description for assessment. Do not test the crack with a high-heat programme or remove the door glass yourself to continue operation.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.