From the blog post:
“Servo now leads other browsers in support for new Web Cryptography algorithms! This includes full support for ML-KEM, ML-DSA, and AES-OCB.”

An article by German IT professionals magazine iX, discussing the update can be found under:
https://www.heise.de/en/news/Browser-engine-Servo-0-0-5-released-with-post-quantum-cryptography-11195613.html