Line graph/chart - straight or smooth curves? - User Experience Stack Exchange

I'm working on dashboard and researching different kind of graphs that could be used. I couldn't find any information about usability/UX differences between line charts that are using straight (A)

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About Stacked Line Charts - Infragistics Windows Forms™ Help

When you use a smoothed line chart, your data is not affected

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Line graph: a Definitive Guide for Serious UX for AI Practitioners (Part 2 of 3)