Came across a video on Rumble, which of course doesn't provide any sauce, but doing a quick Bing search provides one matching result which of course is the top result and appears to be by a "fact checker"
Eye's on, something may be breaking on Antarctica...
https://rumble.com/v1k7pod-russia-claims-to-pull-out-of-the-antarctic-treaty.html
Thanks, I have Yandex bookmarked but keep forgetting it. I tried Brave but turned up nothing relevant in the top several results so I just went with what I'd found/posted.