Information for Media Bias/Fact Check:

Wiki: unreliable - There is consensus that Media Bias/Fact Check is generally unreliable, as it is self-published. Editors have questioned the methodology of the site’s ratings.

MBFC: Least Biased - Credibility: High - Factual Reporting: Very High - United States of America

Information for The Guardian:

Wiki: reliable - There is consensus that The Guardian is generally reliable. The Guardian’s op-eds should be handled with WP:RSOPINION. Some editors believe The Guardian is biased or opinionated for politics. See also: The Guardian blogs.
Wiki: mixed - Most editors say that The Guardian blogs should be treated as newspaper blogs or opinion pieces due to reduced editorial oversight. Check the bottom of the article for a “blogposts” tag to determine whether the page is a blog post or a non-blog article. See also: The Guardian.

MBFC: Left-Center - Credibility: Medium - Factual Reporting: Mixed - United Kingdom

https://www.theguardian.com/world/2024/oct/30/north-korea-troops-russia-kursk-ukraine-lloyd-austin
https://mediabiasfactcheck.com/the-guardian/