So does paying them in rubbles let them evade sanctions because it creates a large international market for rubbles allowing Russia to conduct their own foreign

So does paying them in rubbles let them evade sanctions because it creates a large international market for rubbles allowing Russia to conduct their own foreign purchases in rubbles? Where as paying in euros let's them prop up the exchange rate of the rubble but ultimately restricts what they can transact? Or is there some nuance of international finance I'm missing?