Follow the integrated model's installation and operating instructions. There is no universal answer for every cabinet, furniture door and washer-dryer design.
Understanding this situation
A fitted arrangement may have specific ventilation or door-position requirements. Copying another appliance's practice can affect heat and moisture around cabinetry, and an existing installation should not be presumed correct solely because it looks tidy.
A useful next step
Check the manual and ask the installer or service team if the arrangement is unclear. Do not alter vents or remove furniture panels as an experiment. Mention any cabinet heat or moisture damage when making an enquiry.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.