Any way to find that out?
Why would that metric be useful? Geniuenly wondering. I learned in the past that open issues are not indicator of how useful the library is.
Example: Worked on a project that used a library with 150 open and 3500 closed issues. Turns out it was a disaster we had to replace. It was disaster mainly because most closed issues were closed by a bot after 14 days and we didn't realise this.
https://github.com/rust-lang/rust currenly has 4738 open and 25,000 closed.
https://github.com/golang/go currently has 4412 open and 27,000 closed.
https://github.com/npm/npm had 2166 before moving to community,forum.
https://github.com/ariya/phantomjs stopped at 1823 open.
https://github.com/elastic/elasticsearch currently has 1734 open and 18,000 closed.
https://github.com/flutter/flutter/issues has 5491 open and 14800 closed issues.
https://github.com/dotnet/roslyn/issues has 5750 open and 12,407 closed
A very useful resource: https://www.codetriage.com/
https://github.com/ytdl-org/youtube-dl/issues has 2,350 open and 14,371 closed