This is a ridiculous PR puff piece by her publisher, and even a vague perusal of the translation indicates it's an atrocity, which is exactly what you'd expect from a "young adult writer" of her physiognomy and smug disposition.

https://newcriterion.com/issues/2020/12/cartes-de-visite

"Maria Dahvana Headley’s new translation of Beowulf starts off like an exploding beer keg: “Bro! Tell me we still know how to speak of kings!”3 Generations of scholars have limped along, translating Hwaet! as “Listen!” or “Yes!” or “Lo!” or “Hail!” (Why not “Belay that!” or “Tut! Tut! I say!”?) Headley has had the wicked idea that what we’ve needed all along is Beowulf: The Frat-Boy Chronicles. If she had continued in this cheeky vein, Headley might have altered Beowulf Studies forever."

and lol

"Headley apparently knows little Old English, and it shows. In preparation, she read all the translations by women she could find."

Stunning and brave.

Do yourself a favor and put in the couple of hours it requires to just read it in the original language. Or if you can't be arsed to do the trivial work required, as apparently the author of this "translation," read Rebsamen.