Airbnb's 'Collections' are a set of homes highlighted for a specific type of trip or occasion–like work travel, family holidays, or honeymoons. Guests can discover and browse collections on the Airbnb home page, or filter for them in search results.
How will your listing will appear to guests? For most guests, your listing will appear as it normally does in search. Being in a collection does not exclude your listing from getting bookings as it normally would.
If your listing is part of a collection, it will be featured to guests when they search for that particular type of trip. For instance, if a guest is travelling for work, they can filter search results to show only homes in the work collection.