But even according to flawed gdp methodology, the Russian economy is not really that small. It's still Japan/Germany sized, which means its only smaller than India (hard carried by massive population and highly dubious financial sector), US (complete tech supply chain, world's largest financial sector) and China (compete tech supply chain, world's largest market).
Of course if you start using measures like energy consumption or material production, Russia shoots up even more. However, even "undervalued" gdp doesn't actually undervalue them a lot. Russia certainly performs better than Germany, certainly is worse compared to US or China, and probably is better than India. So the gdp ranking of Russia closely follows Russia's actual performance, with India being the only outlier.