The order in search results is based on several factors: distance to your search location, profile completeness (services, opening hours, contact details), bookability, and how up-to-date the information is.
There is no paid preferential treatment. The ranking is not influenced by payments. No studio can buy a better position. The only way to improve visibility is a complete and current profile.
Studios can improve their visibility by maintaining their profile: add opening hours, list services with prices, provide contact details, and enable online booking. The more complete the profile, the better the placement in results.