Easy, enable only cookies for the things you want (maintain your session with 1st website, plus core functionality like payments). Everything else are marketing

Easy, enable only cookies for the things you want (maintain your session with 1st website, plus core functionality like payments). Everything else are marketing cookies. I used umatrix for years but gave up. The guessing what to enable to get a site to work got tiresome, and IIRC there was also problem with browser support.