I don't know if it is articulated somewhere, but I believe the current Adobe practice is to have one version of on line help with the goal being to update it to the current version.
The occasional exception is, for example, significant old workflows. In your first link, there is a reference to the captioning workflow for version 14.9 and before. The link takes you to a page with the old documentation. (That page was updated 5/24/23 like many of the PR graphics/text pages. I do not know what was changed. I suspect it was not substantive.)
But, I do not think there is documentation for version 23.2 specifically.