Donut uses the Wayfern Chromium fork rather than simple JavaScript overrides, so its engine level spoofing is more capable than basic open source scripts. The bigger issue in production for paid ads or crypto is keeping signals consistent across browser headers, TLS signatures, and behavioral patterns over time. Commercial options don’t guarantee safety either, but they usually update their engines more often to keep up with changes in anti-fraud detection from platforms like Cloudflare and Meta. I’d test Donut on non-critical workflows first and see how its profiles behave before putting valuable accounts at risk from fingerprint mismatches.