The line chart for downloads per month (and the cumulative one) too hide some series:

10.6 is rendered on top of the line for 10.7, 10.8, 10.9 and because it has a much bigger share of downloads ends up hiding those smaller series. See attached picture for example:

For Month 2022-05-01, one can only see the 10.6 downloads, but there have been downloads for the other series too. Perhaps for this chart it's better to not have a color under the series line.