Learn to read a little better.
See if you can follow along here. I know it might be difficult, given your apparent limitations, but try really hard.
Edwards went from the 20 class to the 19 class. He's considered a top 5 player in the 19 class. That might be right, because I don't think the top of the 19 class is all that spectacular.
He was also considered a top 5 player in the 20 class, but I think that was wrong, because the top of the 2020 class appears to be pretty spectacular. Evan Mobley, consensus #1 in the 20 class, just played a game against James Wiseman, consensus #1 in the 19 class, and I think 999/1000 people who saw the game would take Mobley over Wiseman.
Edwards is very, very good, but I think the best players in 2020 are better. I also think he's very similar to Tyrese Maxey- basically Maxey with more leaping ability- so I'm not sure how much of a game changer he would be for UK.