Thank you.
Professor J. Rufus Fears and Professor Elizabeth Vandiver - recordings of whose lectures I own - both believe an individual “Homer” is by far the most probable author. (Prof. Fears flatly asserts it, because he’s like that.) Iirc, the translator Robert Fagles also came to this conclusion. Of course, their belief does not establish the truth, either.
My family read the Book of Judges recently, and I noticed some repeated passages that reminded me of some of Homer’s stock sections. I wouldn’t be surprised if Judges was originally an oral composition, recited for the instruction of a religious assembly, perhaps. Charlton Heston would say so: he strongly emphasized the oral tradition aspect of what became “Scripture.”