If there is a conflict especially if 2 countries will certainly have a major impact on the global economy, moreover Russia is a large country that has strong economic power, when invasion to Ukraine, many countries will oppose and embargo so that supplies to countries that need Russian products will stop.
Let me bring you back to reality
1. Russia is not a great country. And not even big. No, the area is certainly large. But inhabited and suitable for use - no more than 30% of the territory
2. Economy - the reality is that the entire economy of Russia, in terms of key indicators (GDP and other financial indicators) - is less than the economy of Italy, or Florida (state) or New York (city)
The last point, you say - no, this is nonsense, this cannot be. Well, if you don’t listen to propaganda, but read real data, it’s not only possible, but it is!
"... In fact, the GDP of the state of New York in 2019 amounted to 1 trillion 751 billion dollars, while the GDP of the Russian Federation showed 1 trillion 637 billion ..."