No. The brand Secret (likely referring to Secret Sales, Secret London, or similar flash-sale/private-shopping platforms) operates exclusively online. It has no physical retail stores in Geneva, Switzerland, or anywhere else.
If you are looking for a specific boutique named "Secret" in Geneva, it may be a small independent concept store unrelated to the e-commerce brand. Check Google Maps or Geneva's official commerce directory for local boutiques.
For online orders from Secret-type sites to Switzerland: expect Swiss VAT (8.1%) + possible customs clearance fees for shipments > CHF 65 (goods value).