Does this sound complicated? Yes. But not that much, IMHO. Whenever you store information that contains PD (Personal Data) that is not strictly necessary for your site to work, you need consent.. BUT that does NOT mean these gargantuan popups with a gazillion of options the ad/tracking "industry" forces upon us. A simple yes/no is sufficient and actually mandated. 4/n
UPDATE: changed PII (personally identifiable information) to PD (Personal data) as in GDPR PD is the context.
@jwildeboer The clear decline button is something we don't often see!
And then there's those companies that go "ah, yes, linking your different devices together is an Essential Thing!" *growls*