Sony sued Quad9 in Germany back in 2021 and won an early injunction[1], however Quad9 successfully appealed[2]. Interestingly, Sony is now going after them in Italy according to that second article.

[1]: https://torrentfreak.com/sony-wins-pirate-site-blocking-orde...

[2]: https://torrentfreak.com/dns-resolver-quad9-wins-pirate-site...