No, it definitely won’t. In fact our card payment system has been updated to think alternative os and browsers are high-risk and even decline payment. We didn’t have any revenue loss.

That's why bots now mimic users beyond user agents, even going so far as loading page assets and javascript. Unless you're using something like recaptcha V3, it's going to be difficult to detect them, and even that requires some interactions first.

As someone who uses an alternative browser… I kinda doubt it. As a group we wouldn’t even move the analytics needle let alone revenue.

Nah. Google doesn't even let people log into their own email with alternative browsers, and they are doing fine.