Russian propagandists from the NTV TV channel have released a deepfake featuring Oleksii Danilov, Secretary of the National Security and Defence Council of Ukraine, attempting to convince audiences that “Ukraine was involved in the 22 March terrorist attack.”
Isis is anti-Shia, considering them infidels, and has a long history of conflict with Iran, especially in Iraq and Syria. Islam isn’t some coordinated power system, it’s a complex, fractious religion with many internal and external conflicts.
Russia, too, has been involved in lots of conflict with ISIS, including in Syria and more recently supporting north African countries’ conflicts against them as well.
https://www-aljazeera-com.cdn.ampproject.org/v/s/www.aljazeera.com/amp/news/2024/3/23/moscow-concert-hall-attack-why-is-isil-targeting