Most of us believe that if there is a conflict, the price of Bitcoin and other cryptocurrencies will plummet. But that is not true, because in 2020, there is a global pandemic that severely damages our economy, but what happened in Bitcoin that time? Price hikes have caused an abrupt surge in the market, indicating that there is a lot of demand. As you can see from the chart, it reaches an all-time high. As a result, I believe that if there is a war, it may be beneficial or detrimental to crypto.
In terms of the global pandemic of 2020 that amidst it still bitcoin market surged high like you said, true it did and that's because there was a huge cooperation all over the globe from both international organisations to countries and individuals against a common enemy the COVID-19 but in a war situation the conditions are different on the people. In a situation of a global war bitcoin would not stand a benefiting chance in the sense that respective countries and even individuals also would be pulling out their investment suddenly each to their own welfare and sustainability.
And it's likely that countries that have investment in bitcoin would pull those investment off to use the proceeds to strengthen herself military-wise, while on the other hands individuals would need money to be able to stuck foodstuffs and others needs of sustaining themselves throughout the war period. All of these actions would rather be negative to bitcoin price falling drastically and there's no benefits in that case.