While I understand that M3gan couldn't stay a villain forever, it still felt a little disappointing to know we were veering away from the thriller of the first one. But that's not to say the second movie didn't bring out a well-paced change. M3gan went from being a homicidal robot to being a layered being capable of evolution and growth, to the point where she's no longer just a bunch of 0s and 1s- she's grown and understands more than just kill and terrorize.
Again, would have wanted more horror, but I understand why they veered, and I'm actually ok with it. It's good for a comfy watch, in my opinion.