In the John Mueller hangout on 09/03/2021, one webmaster asked about category pages. They asked whether having content at the top or bottom of the page would help.
John explained that he believes a little bit of content is always going to be helpful for Google. You don’t have to turn it into an article, you just want to have a little bit of content that gives Google information about the context of the articles that appear on that page.
He also said you don’t want to have a long article at the bottom of the category page because that’s not really going to help Google learn more about the context of your articles.
But you also don’t need to rank for every single keyword for these category pages. So it doesn’t need to be a massive amount of content. This would, in actuality, dilute the quality of these pages overall.
Don’t overdo it.
This conversation occurs at approximately the 14:54 mark in the video: