I actually look for the exact opposite. I feel like most novels stop developing/spending much time with the MC after 150-200 chapters and switch to other POVs to introduce villains, love interests, side characters, political ploys etc.etc.etc..
Most likely the MC gets his screentime at the end of those arcs to faceslap or fight, but overall it feels like the MC often becomes an side character.
And this becomes worse the later it is in the story... the more 'trump cards' the MC has, the longer drawn out are showdowns where MC is the side characters. And when he gets his action, it's like the author works down a list of all his special powers/abilities/etc. one after the other, just to get a bit of tension.
To be honest; most of the time I don't give a fuck about the side characters perspective. I don't want many informations that the MC doesn't have, since that's only frustrating to me.
Actually that's the main reason I stopped reading real published books. I enjoyed the 1-perspective-aspect of LN/WN at the time. Now it changed. Everybody thinks it's good writing to waste half of the chapters/arcs or even more to exposition, while the MC acts like a faceslap-template.
Fuck multiple POVs.
Edit: This is extra frustrating, when multiple POVs are used to repeat informations 3 times, plus observer comments. (in a non-funny/thoughtful way)