Is your feature request related to a problem?
If you do value_counts on a categorical there's no way to suppress unobserved categories.
Describe the solution you'd like
Add an observed keyword to value_counts.
API breaking implications
None, unless we want to revisit the default in light of #35967.
Comment From: usersblock
Hello, is there a code sample you want to add to testing?
Comment From: jbrockmendel
closing as duplicate of #46486 (even though this came first, there is more discussion there)