There's plenty of EU companies getting fined: on top of the fact HN will naturally bias toward reportage on well-known US unicorns, there's also a language barrier: most reportage of fines outside of Ireland won't be in the English language.

The Irish DPC is also reportedly quite busy, by virtue of shouldering a disproportionate amount of the enforcement work for non-EU companies (due to tax-driven HQing there). They have taken cases against European entities as well however: notably they even even taken cases against the Irish government for violations around mandating biometric public service ID cards.