@shawfactor Thank you for your comment. If a page does not exit or due to malware attack unwanted URL’s are getting generated and createing a lot of 404 errors that time this plugin is helpful.
When someone delete a page, they usually redirect it to a different page either with 301 or 302, if not it shows 404. Google recrawls a 404 page unlimited time unless it is chaange to 410.
We are not changing the content. The user will see the 404 content assigned by the theme / developer. We are just changing the http status which will help Google Bot not the recrawl the pages again. As a result, it will optimize the website’s crawl budget effectively.