John Gill Commentary Jeremiah 52:2

"And he did that which was evil in the sight of Jehovah, according to all that Jehoiakim had done." — Jeremiah 52:2 (ASV)

And he did [that which was] evil in the eyes of the Lord Though we do not read of any idolatry he was guilty of; yet he was disobedient to the word of the Lord, and did not humble himself before Jeremiah the prophet of the Lord, that spoke in his name; and particularly he rebelled against the king of Babylon, and violated the oath he made to him, (2 Chronicles 36:12 2 Chronicles 36:13) ;

according to all that Jehoiakim had done an elder brother of his, who reigned after Josiah, and before Jehoiachin.