https://techcrunch.com/2023/01/12/meta-ads-gdpr-decisions-edpb/

Elon Musk should take note of a recent major privacy fine for Meta before forging ahead with any plan to force behavioral ads on Twitter users in the European Union.

To wit: In remarks today, following the publication of two final decisions against Meta by EU privacy regulators applying the EU’s General Data Protection Regulation (GDPR) to Facebook and Instagram — decisions which include a total of around $410M in fines (still with a third decision against WhatsApp due shortly), along with orders to correct its unlawful data processing within three months — the European Data Protection Board (EPBD) has issued a clear warning to other businesses that seek to ignore EU data protection rules by not providing users with a choice over being subject to tracking for behavioural advertising.