When a site is first hosted, Google often runs a test boost, allowing new brands to rank very quickly, especially those with little competition. After a few days, the system re-evaluates signals such as domain trustworthiness, content, internal links, etc., so rankings may drop or disappear temporarily even if the site is still indexed. Ahrefs reporting a 410 error is usually due to their bot encountering unusual responses during crawls; if Search Console is still indexing normally, the problem is not with Google.