> This is not really evidence-based reasoning, it’s just “I can imagine something evil that Google might do.”

Please read Mozilla's story on how Google sabotaged them: https://archive.is/tgIH9

Oh. And they very literally killed Internet Explorer: https://blog.chriszacharias.com/a-conspiracy-to-kill-ie6

Oh. And Google's mobile apps always conveniently forget the setting of "always use system browser and never ask me", and will keep asking you to open with "chrome", "google", or "system browser".

Oh and...