i think lies have a specific intent behind them. NT ppl usually have a common cultural understanding of what is an actual lie and what is simply said because that is how things are done. declining offered valuables on the first offer is the first thing that comes to mind.
I remember my mom screaming at me about lying to her because I answered her question but it wasn’t the whole answer, therefore it was lying by omission or a white lie. Messed with me so much. I could not figure out when a lie was to save friendships or when it was me being a terrible person.
So I gave up trying to navigate that. Now I do mental gymnastics to figure out how to tell the truth without sounding like a dick. The worst is telling someone their ugly baby is cute.