Proton browser would be one of the more safer browsers, with a built in VPN, proton pass, proton mail and pretty much every proton app embedded in it. I'm not sure how many people would like this idea but it seems really cool. I'd also like this browser to work on Linux. This browser could implement a real time "advice" feature. If the site is sketchy or has gotten reports. Proton browser would discreetely block the unsafe features, give you a pop up warning you, or simply put make you accept the fact that the site could be a malware distribution point, simply put, "This site is suspicious of x, it has reports for x. Are you sure you want to continue?". I think this would be one of the bewt browsers.