For the blog, the following feature seems to make sense to me: Entering an expiration date, at which the post automatically disappears from the blog index. Whether the page should then also be deleted completely, you have to check.
So far you can only manually exclude a post from the index. For entries that are limited in time, for example events, sales campaigns, registration periods and so on, it would be helpful to be able to set an end date.
So you don’t have to keep it otherwise on deadline to remove the post.
Make the expiration date a smart field for the blog (insert it when needed).