Is there any cleaning involved with a snake?

Yes ! They need:-

Clean water every day.

Faeces and uric acid removing as soon as you notice it is there.

The whole vivarium cleaning out (and washing with a damp cloth and weak disinfectant solution) once a week.

Any soiled substrate removing as soon as you notice it.

All cage 'furniture' cleaned once a week.

This will keep bacteria to a minimum - and ensure the vivarium is clean, and free from contamination by excretions. Put simply, it's basic hygiene 'housekeeping' that comes with owning a reptile !