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DJI's app wasn't on the Play Store for years before Russia invaded Ukraine, so that's somewhat unlikely.

I don't have a source to hand, but I've heard their drones were used in Syria for several years before Ukraine

If my Googling is correct, it seems to have been removed around 2020-2021. Russia first invaded Ukraine in 2014 though.

China effectively banned the Play Store in 2010. Your Google-fu leaves something to be desired.