I generally start with Google Search Console, where I update pages that have impressions but lack clicks. Fixing gaps in intent and adding internal links to them has generally proven to be a more effective strategy than creating another article with the same keyword.Describe your experience when updating old content, working on search intent, internal linking, and updating old content to help you get better rankings and organic traffic than writing new articles.
Absolutely, just because you rank higher does not necessarily guarantee more traffic since you could have a keyword that gets very few searches. I would definitely look at your queries and impressions in GSC.Sometimes rankings improve but traffic stays low, so I also check whether the page is targeting the right keywords.
Well, I don't think completely rewriting old content will help it rank. But keeping content updated over time through content refreshes is a ranking factor. Based on my own experience you should keep updating your content but don't change everything from A to Z, as that can also lead to a drop in rankings.Describe your experience when updating old content, working on search intent, internal linking, and updating old content to help you get better rankings and organic traffic than writing new articles.