Moving Mean Of A Moving Mean. Is This Ok ?

Hello, I have a data set I am plotting which is very noisy. After applying a moving average using the nearest 1000 or even up to 10000 neighbors, it is still not good enough to give a reasonable plot.

But after applying a moving average to the initial moving average, the plot looks pretty good and a trend is clear.

Is this ever ok? Is there a name for this ? I see online that there is something called a “double moving average” , but this is mostly posted on stock-trading sites.

My data set is 200,000 values measured at 2000hz

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