404 URL can effect on keyword ranking

[Fitmovers]

Yes, 404 URLs can affect keyword rankings indirectly, especially if important pages or backlinks point to URLs returning 404.

Unimportant/removed URLs: Usually no major ranking issue.
Important ranking page returning 404: Can lose its rankings and organic traffic.
Backlinks pointing to a 404: You may lose the SEO value those links could provide.
Moved page: Use a 301 redirect to the most relevant replacement page.
Permanently removed page with no replacement: A 404/410 is generally appropriate.

[suwaidionlineuae]

Removed pages: If an important page returns 404 and has backlinks or organic traffic, you may lose the rankings and traffic associated with that page.
Internal links: Broken internal links can make it harder for users and search engines to navigate your site.
Lost link equity: If a deleted URL has valuable backlinks, consider a 301 redirect to the most relevant replacement page.
Unnecessary redirects: Don't redirect every 404 to the homepage. Redirect only when there is a genuinely relevant alternative.
Normal 404s: URLs that never existed or were intentionally removed are generally fine; Google expects websites to have some 404 responses.

[firstdigiadd12]

Yes, 404 errors can indirectly affect keyword rankings if important pages become unavailable and users or search engines cannot access them. Fix broken URLs or redirect them to relevant pages when appropriate. However, a few 404 errors do not automatically harm rankings.

https://www.firstdigiadd.com/