E-Trade 1099-B has a section called Noncovered Securities with Undetermined Holding Period with Box 4 w/ amount of federal income tax withheld. Where can I deduct this?

My former employer paid us with e-trade stock in 2020. Last year they merged with a European company. I did nothing but now I'm stuck with a complex 1099. I entered the 1099-DIV, 1099-INT, and line by line all of the 1099-B short and long term covered sales. What do I do with this other federal tax that was withheld? I can't tell where to enter it. thank you