How does a change in the exchange rate affect the cost of a freelancer's hour?

Question

Freelance

Let's say a freelancer (for example, a web developer) living in Russia works on two sites: Russian and American. When the rate was 30 rubles for 1 dollar, he took $ 10 per hour on the American platform and 300 rubles on the Russian one.
The situation has changed, now 1 dollar costs 60 rubles, prices are rising. Presumably, if this freelancer moves completely to the American site, then his purchasing power parity is maintained (even increasing, since the dollar has risen faster than prices). But, if this is not possible, and most of his orders are on the Russian site, then the parity of his purchasing power falls. The freelancer seeks to restore the previous standard of living and increases the hourly rate on the Russian platform.
So it looks like in theory, how does it work in practice?

1. Are the hourly rates of freelancers on Russian sites growing now (or rather, has the growth rate increased)?
2. Does it happen in proportion to the growth of the dollar?
3. Is there an outflow of Russian freelancers to foreign sites now?
4. If there is an outflow, do these freelancers create a dumping effect on foreign sites? Or is their share there not so significant?

Answer 1

1, 2. If they grow, then it is definitely not proportional to the exchange rate of $.
3. Judging by the frequently flickering questions on the toaster, people are puzzled by the topic of freelancing on foreign sites.
4. Why create dumping when you can get twice as much? The lower the rate, the more Indians.