They absolutely test releases ahead of time. They test on more data & better data than anyone else and they dogfood every version before wide release, which the

They absolutely test releases ahead of time. They test on more data & better data than anyone else and they dogfood every version before wide release, which they still call a beta. They used to gate it behind a safety score until it started to get good and they still have not-paying-attention detection, nags, and lockouts. But yeah, if you don't consider any of their testing and precautions I guess they don't have any testing and precautions.