I have a cruel question whether or not to use post_id in the URL.
I'm currently using:
/% category% /% postname% -% post_id% .html
Is it worth removing this post_id or creating it with a slash separating the id from the post name?
/% category% /% postname% /% post_id% .html
Looking only at SEO, I believe you are leaving your URL without numbers, making it as "friendly" as possible, so it is better for the Search Engines user and robots.
But considering that you already have a URL in a production environment, it is worth evaluating the impact of this, if it is not enough, I believe it would be valid to remove the post_id from the url as a whole.
EX: /% category% /% postname% .html
