This tells me that you don't know what you're talking about, and lost credibility due to that.

Incognito mode primarily prevents your browser from saving your browsing history, cookies, and site data. It doesn't prevent search engines from personalizing results based on other factors, such as your IP address, location, device information, and potentially even your search patterns.

While incognito mode offers some privacy benefits, it doesn't guarantee completely unbiased search results.