Hello, you really will need to have that noise listened to by a technician at a shop near you; no way to know without hearing it.
Use this link to find some shops near you that can help with your concern:
www.repairpal.com/repair-shops
RepairPal Certified shops can diagnose and repair your 2019 Subaru Forester. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.