The truth about cookie behaviour can be found, as it's a browser-driven feature (unlike fingerprinting). But at least some analysis of the cookies will be neede

The truth about cookie behaviour can be found, as it's a browser-driven feature (unlike fingerprinting). But at least some analysis of the cookies will be needed, as I think essential cookies under some definition/interpretation are permitted? Now what exactly that means I'm not sure. But the first thing my cookie banner does when someone declines the banner is.... create a cookie. But I guess we can argue that's essential for the user experience - to keep the banner out of the way on follow-up page views. Not a lawyer or privacy expert though. Edit: above is behaviour I found with at least 2 cookie banners. I'm interested in suggestions if this isn't standard!