Back in 2021 Russia did several tests that disconnected from the international internet. They were prepared to do that and they didn’t suffer much financially and nobody really noticed tbh https://www.reuters.com/technology/russia-disconnected-globa...

Just today I heard they had big outages. Haven’t seen much news about it but perhaps, as this article mentions speculation, it was an internal shutdown rather than external actors? https://www.themoscowtimes.com/2024/08/21/russia-blames-tele...