Suppose we have a landing page like this https://www.example.com/ and when we get a backlink from and big website it does pass juice link! I want to know what if that big website give a backlink on a good and relavant anchor text but with additional parameter for affiliate tracking like this https://www.example.com/?aff=afdsfdsfds will it going to pass the juice link or will it be called as a paid link?
Google is quite intelligent and won't consider affiliate link as a backlink. If you use too many of affiliate links then you might hit by a search penalty.
No, for Affiliate Links, Link Juice never passes, and you also can't call it as paid link. You create affiliate links with other sites so that through your website, visitors can go to other sites with a view to buying products or getting other services. Search Engines like Google never count affiliate links as backlinks. Besides, backlinks are links that you put on other's sites for SEO purposes, and search engines are intelligent enough to identify them. So, you'll make a great mistake if you consider affiliate links as backlinks.
Since the affiliate links are used for driving people to earn money, Google does't consider them as backlinks.