Do you have any proof of this? I've seen that mentioned a few times by some youtubers and there were people who looked for any proof in the blockchain and could find none. Since the sanctions were imposed there wasn't any change in volume coming from Russia. The only pump that we've seen in the recent month was the one coming from Luna.
Bitcoin isn't trading at 30k because of the Russians. If you're looking for explanations, open a chart for Nasdaq for the last 3 months and compare it with bitcoin.
What is the real value? It's really hard to say, but I don't agree with people who say that the price we see on centralized exchanges is the value. In fact it has very little to do with real value and a great example of that is the crash in 2020, where 1 day it was trading for around 8k USD and 2 days later it was 4k, so what was the real value back then? 4k? 8k? A week after the crash iut was 7k again, so maybe 7 was the real value?
Exchanges suffer from lack of liquidity and they can't be used to measure value. All they can do is show price, but even that should be taken with a grain of salt, which is why we have moving averages.