For real tho
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ITT a horde of people who don't know that http is stateless. Cookies are the easiest and least intrusive way to maintain your session.
And those are allowed under GDPR as necessary cookies
No prompt needed even
Also an easy way to store needed variables between pages. For news sites without a sign up this isn't necessary but for actual web apps that live across different subdomains it can be a nice to have.