Does anyone know how much information a real estate agent learns of your finances, when buying a house? is the total number the only thing they know?

I have a relative who just became an agent and knows I’m looking for a house. The issue is, the parents of this relative have the money habits of a teenager and make any money topic awkward. My fear is that every family function would be awkward with “look at mr. bigshot, buying a house at his age.”

A delicious bottle of Balvenie 14 Carribean cask for your time.