How can we test new products on platforms without affecting our main accounts?

We started using https://octobrowser.net/ for this purpose. Each profile is isolated and has its own cookies, proxy, and digital fingerprint. This allowed us to test new products, launch promotional campaigns, and check marketing messages without risking our main accounts. This made it possible to obtain real test results without negatively impacting our main accounts. The browser significantly simplified our work and reduced risks that previously required complex manipulations and constant monitoring.