I do feel like upgraded content happens more often with KR webtoons, but to say in the best-case scenario that it's the same is a crazy wild take.I hate this shit about 'the adaptation of the novel is worse, read it and you'll understand,' because, in the best-case scenario, it's the same shit. But often, it's far worse than the adapted version due to a simpler plotline and dumber characters.
I find it far more often that adapted versions have simplified plotlines and dumber characters, I'm kind of baffled that you seem to view it the other way. This adaptation is definitely simplified plotline + dumber characters, I see comments almost every chapter basically going "why did Z happen", and the answer is basically "because X and Y got removed, so you're just left with Z". Like in chapter 10:
Q: Why did Frey rush up to block a sword with his body instead of the sword he's holding?
A: Because in the novel he was in the middle of healing Kania when he got unexpectedly attacked from behind instead.
A: Because in the novel he was in the middle of healing Kania when he got unexpectedly attacked from behind instead.