I may have missed some discusson of this, but the OP was no doubt prompted by recent news article:
https://nypost.com/2022/11/17/jeopardy-bible-clue-sparks-hellfire-debate-over-new-testament/
in which the question
"Paul’s letter to them is the New Testament epistle with the most Old Testament quotations"
was on the game show Jeopardy. The 'correct' answer was 'Who were the Hebrews', but curiously the framers of the question were unaware of the debated authorship of Hebrews.