I would consider this claim as false or unsupported. First, I stopped and examined the source: this claim is made in a random Bluesky post, and there is no additional evidence provided in the News Detective post. The source does not appear to be an expert, news source, or research body that provides objective information about the topic, so I would not necessarily consider it a trustworthy source of information.
After I investigated the issue further, I found that the North Atlantic Fella Organization, often abbreviated NAFO, is typically portrayed as a decentralized pro-Ukrainian internet meme movement that fights against Russian propaganda and raises funds for Ukraine, rather than being a Nazi cult. For instance, WIRED refers to NAFO as an online activism group that utilizes the image of Shiba Inu dogs in their memes and fundraises for Ukraine’s defense efforts. NAFO’s website describes it as a volunteer organization that redirects visitors to legitimate Ukraine-related charitable organizations; however, this is clearly a biased source since NAFO promotes itself on its website. There was no credible evidence suggesting that NAFO had any formal Nazi doctrines or beliefs, or that NAFO had a structured leadership or membership framework. Although some individuals linked to NAFO may post extremist content, this does not mean that the entire organization is a “Nazi cult.”
https://www.wired.com/story/nafo-ukraine-russia-war/