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

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)

How to create a smooth curve line graph in illustr - Adobe

Choosing Chart Types: Consider Context

regression - Fit a smooth approximation line - Cross Validated

Prevent chart with Smooth Lines from not going less than a minimum

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

What Is a Line Graph and How To Make Online

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

How to make a line graph in Excel

How to make a line graph in Excel with two lines on one axis - Quora

Create Line Chart with Smooth Lines Visual for Power BI

Directly / Inversely Proportional Graphs - GCSE Maths