Try to find out about this from the house's previous tenants if you have their contacts or perhaps from your neighbors. People sometimes know perfectly well what their neighbors grow, so they will certainly be able to tell you whether these fruits are edible. We also recently moved into a new house and rented furniture from
https://onstage-online.com. We haven't fully settled in yet. There were also some interesting plants growing in our backyard, but we didn't know what it was. I was worried that it could be dangerous for children because of decorative poisonous plants. But an elderly neighbor calmed me down. She is a botanist and well versed in plants, and those that grow here are not dangerous to humans.