It’s hard to clearly visualize the overall trend of the data without using trendlines, they make the data that much more useful and clear.
Here is an example from Google Sheets (orange is the moving average):
It would also be good to have all of the options related to creating trendlines in general.
So the type: Linear, Exponential, Polynomial, Logarithmic, Power Series, Moving Average
Pick the time period of the moving average and so on…