MGA is absolutely terrible in general but it really starts getting wild when you realize every place he moves to he is suddenly the bottom of the totem pole and the same trope events repeat. Fighting someone stronger that nobody expects him to beat, some butthurt master gets killed by him, people seek revenge, he eats lots of cultivation resources etc... etc... I CAN'T BELIEVE it has 5k chapters.
I don't know how you can write something without an outline it feels to me the farther the plot goes along the more obvious that past events and present events in the novel weren't really that well planned out. Though most novels don't seem that well planned out in general.
All systems read, I have that on my list, someone on /lit/ recommended it to me. Also that's pretty crazy I remember once after exams I spent all day and all night reading coiling dragon.
Yeah I want to get started on Iliad but I know it's going to be a struggle to read, I know I should because of how fundamental it is to just general literature.