so if Russia manages to make mining legal now, miners can now freely mine crypto without hiding, while the government benefits in return through taxes and every other kind of fees miners would be expected to pay, this could at least help their economy, even if personally i think the effect would be minimal.
I think Russia is going to be very crypto friendly. they will solve the country's economic problems by using crypto.
If they legalize mining it will help the economy because of tax collection but to an extent that won't be the solution of Russia even when the war ends. Russia is likely going to go down for a long time because tax collection in mining alone can't solve the problem of limited trading. Limited trading in global market will still exist after the war and the amount of money that is suppose to enter the economy through global trading (foreign exchange) is higher compared to tax collected from mining.