I think the more difficult part is that you also have to be able to retract consent. So a first-party site has to offer this possibility as well and pass that t

I think the more difficult part is that you also have to be able to retract consent. So a first-party site has to offer this possibility as well and pass that to the advertising networks, which will have to remove the relevant data. Of course, this is technically possible. But apparently everyone has been sleeping during the two-year grace period.