This magazine is dedicated to discussions on the federated social networking ecosystem, which includes decentralized and open-source social media platforms. Whether you are a user, developer, or simply interested in the concept of decentralized social media, this is the place for you. Here you can share your knowledge, ask questions, and engage in discussions on topics such as the benefits and challenges of decentralized social media, new and existing federated platforms, and more. From the latest developments and trends to ethical considerations and the future of federated social media, this category covers a wide range of topics related to the Fediverse.
The closest thing I've found is @ukraine@kbin.social, and on mastodon @UAWeapons@masto.ai which seems to have the most subscribers to a ukraine relate content on fediverse (that I've been able to find).
Sadly nothing like r/combatfootage. I also very dearly miss ukrainewarvideoreport. Hoping that the people posting there would join us in the fediverse soon.