@Massimo31 I am not sure I understand your question, but when I booked airbnb stays recently, there was an information box saying something like "this host has adhered to the enhanced cleaning protocol".
No matter how well you clean the apartment, you cannot guarantee that the shared areas are santitized the same way. I think we as guests must take responsibility for our own safety. Hosts are providing accomodation for those who choose or need to travel during a pandemic, they are not running a hospital.