[Steven Tyler]

Newsweak is fake news
Russia put in a gold/ruble floor
Ruble to US Dollars has been very stable
https://www.xe.com/currencycharts/?from=USD&to=RUB

[Widget Jr]

The Moscow Exchanged stopped trading in in rubles.
Major Russian banks shut down their websites so Russians cannot withdraw money.
The central bank imposed an exchange rate by decree.

If that happened to any other currency, no one would call it stable or trust it.