I find these GDPR notices useful. Obviously every website use cookies, but it's nice to know what these cookies actually do. I've already encountered a few news websites listing 100+ advertising/targeting companies whose cookies they use. That was quite eye-opening.
I also appreciate all the GDPR emails that landed in my email box recently. I've replied to about every second of them asking for my account/data to be erased.
I can confirm from personal experience. And all of these have to be unchecked separately, there is no deactivate all button. It's completely ridiculous. Oh and your selection isn't restored once you leave the dialog and immediately come back. I know sites have an interest in persuading you to let them share your data, but some of these dark patterns are indistinguishable from black.
