It looks like the bug referenced above is fixed in ArcGIS Pro 3.2 due out in a couple of weeks.
Also, I wanted to note that we have heard the complaints that calculating statistics generates a chart for the layer, and you may not always (or ever?) need that. Data Engineering has been available for a number of releases to work with statistics and not generate a chart, but the entry point was not obvious for those of us who are used to right-clicking on the field header.
Starting in ArcGIS Pro 3.2, try the new Explore Statistics option which will open the Data Engineering view for the field or fields selected and will display statistics for a selection or the entire field...
We're hoping this makes quick, ad-hoc statistic workflows easier!