Egypt usually does well there despite having worse players. they did reach the final with Salah but lost it on penalties. they simply can't play football at all for some reason, which you could say for pretty much all the North African teams. all the knockout games they played in that tournament went to extra time/penalties.
ironically, Egypt won the tournament both times when Eto'o was the top scorer. so if anything, when Eto'o did "show up", Cameroon would win nothing. and yet, when he would score only once, in group stage, Cameroon was so ahead of everyone else that it didn't matter at all.
it's a strange tournament with top teams often utterly mismanaged. Egypt won the tournament 3 times in row and you still wouldn't want a single player from their team.
yet both Cameroon and Ivory Coast were full of players you would want United to sign.