What log files reveal that no dashboard shows
Search Console's crawl stats are aggregated and sometimes delayed by a day or more. A raw access log, by contrast, lists every request in order, including the ones Googlebot made to a broken redirect chain nobody noticed.
"Server log files contain a record of requests made to your site by users and crawlers, including Googlebot."
Google Search Central Documentation
Reading logs takes more setup than opening a Search Console tab. The payoff is a request-by-request account of which sections of a site actually get visited, and how often each one is skipped.