Latest example I've seen is the article for Marjorie Taylor Greene. It's under "extended-confirmed-protection", listed as a "Good article". Yet starts right off with the summary, "Marjorie Greene,[3] is an American politician, businesswoman, and far-right[4] conspiracy theorist[5] serving as the U.S. representative for Georgia's 14th congressional district.[6]"
Those kind of abstract accusations do not belong in an encyclopedia article, and while there's a wealth of "citations" buried under the [5], none are anything other than news articles repeating the same accusation. It's baseless mudslinging that is the exact opposite of sticking to provable individual claims and facts, like a proper encyclopedia article should consist of.
Granted, it's not an insurmountable bar as it appears anyone with 500 edits can begin to participate. However, it shows a clear attempt to control the narrative to a specific one, and erecting barriers against changing that while officially endorsing the current one. It spans greater than just that, and seems common across other political articles on Wikipedia.