Update: Google has Launched a Feedback form to Report Spam

The reasons for the report are notable,

• Scraped content
• Automatically generated content (AI-generated content?)
• Keyword stuffing
• User-generated spam
• Thin affiliate pages
• Hacked pages

More information -

https://developers.google.com/search/blog/2023/06/reporting-search-quality-issues

Let's see ahead how Google handles the reports...