No, you don't need to do it, read well the article and also the Vivaldi business model. It depends only of your settings. There are two ways for a company to create incommings, selling data to advertising companies, like Mozilla selling data to Alphabet, or receive a commission if an user use a sponsored link anonymously, if he want, as Vivaldi do, which don't track nor log or profile the user. Your choice which is more private for you.