CornCorn

Three years later, do they even care about their customer?

I have the same issue. For my case, I'm using a web template that has a few sample blog posts automatically created. I moved these blog pages to the 'Not Linked' section, not knowing that those pages would still technically be available from an SEO perspective. After knowing that these pages are actually published, just not in navigation, I deleted them. But even after doing so, GSC still shows these pages as 404 errors.

Same problem. Still no solution to this? This is ridiculous