Depends, I’m from Europe and there are many local sites that allow that. You might need to search for a bit (e.g. not a button but a link in some fine print). But yes, there are many sites that just don’t have a “decline all” button and that ask you to deny every one of their 937.726.193.372.129 partners (most of them double, as you need to deselect the partner and their “legitimate interests” separately…