Aside from Vivaldi, I also use Firefox. Get the “login with Google” on both. Maybe Google has fingerprinted my laptop?
But that’s the point, the image in that pop-up / mini-modal is a tracking device. The minute the browser requests it, Google knows where I’ve been. F** that
Some sites include a JS "log in with google" that does the same thing. You can tell by whether you can select it with the element inspector. Use ublock to block the js version. Also, the login prompt appearing has nothing to do with Google tracking you or using fingerprinting. It's just the site author added google sign-in. That's all. Block google domains in your dns if you're paranoid.
But that’s the point, the image in that pop-up / mini-modal is a tracking device. The minute the browser requests it, Google knows where I’ve been. F** that