The Coverage section of Google Search Console shows 206K valid URLs, of which 174K are submitted and indexed, nearly all of which are Q&A pages. The remaining 32K are indexed, but not submitted in sitemap.
However, the Core Web Vitals section only shows data on 28K URLs. In the Enhancements section, it says there are only 27K valid Q&A items.
What happened to the other 150K URLs?