Its great that it doesn't always follow the MC. The new world has shown how weak and fragile it has become yet it has taken down many strong players in the past that were revered as gods.
Even the lizardman arc which is heavily criticized is extremely important. A whole species is fighting for survival against Nazaricks weakest army that just RANDOMLY generates around the Tomb. Ainz wanted to develop Cocytus as a commander. Adamantite warriors are known as living legends of the human world but they become fodderized by middle tier characters in Nazarick.
Season 3 is starting a little slow but to the light novel readers know whats coming. Listen to the dialogue and ask yourself why is this important to show you. The reason is it will build up a lot of action scenes later. The world props the overlord up even higher then 100% MC pov like most Isekai.
I am happy to elaborate into more detail about Overlord but I don't want to spoil everything. Theirs a lot more occuring then you think like Demiurge farming Humans for skin to make scrolls.
