I stopped using Gmail around 8 years ago. The decision did not arrive as a reaction to a single incident or policy change but as a gradual shift in how I thought about email as a system. Gmail worked well then and continues to work well now. What changed for me was not the quality of the product but the role it played in a larger ecosystem that collects and correlates data across nearly every digital interaction (which sounds abstract until you notice how often you click "Sign in with Google").