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kind of a loss-loss unless you have specific life plans
However, if you're in the anglosphere you should definitely learn korean over russian because, after you get your uni degree, you can get a teaching job over there and make loadsa $$$ and not have to worry about any language barriers in day-to-day things like buying groceries, getting a taxi, or small-talk
I can't think of any advantages to learning russian except if you plan to take multiple vacations there (why)