These declarations were made a week ago, during the build-up to the current situation, and therefore prior to the set of sanctions that have started being rolled-out.
It would be interesting to get some intake here from Russian natives as to the seriousness of the possibility coming true rather swiftly, and whether the general population is acting upon these declarations in some way to try to place their assets somewhere save.
See:
https://news-ru.translate.goog/economics/v-gosdume-prokommentirovali-vozmozhnuyu-konfiskaciyu-sberezhenij-rossiyan/?_x_tr_sl=ru&_x_tr_tl=en&_x_tr_hl=es&_x_tr_pto=wapp
https://cointelegraph.com/news/russia-to-seize-retail-deposits-if-sanctions-go-too-far-official-warns
What they can do is to convert some of their cash to crypto while they can.
And transfer it to their own wallet like electrum and other non-custodial wallets where you have the full control of your assets.
At least, you are securing some of your funds where the government can't easily seize from your end.
And then, when all things are settled, and you know the situation is already safe, you can slowly convert your crypto to your fiat.
I believe, some Russian crypto users are already doing this as we speak or even before this catastrophe.
Sending fiat money outside I think, is hard now from their end.
Right now with the limited services available the people need to find ways converting fiat to crypto. If people start to spend cryptocurrency and finds increase in the acceptance on needs then automatically there'll be circulation of cryptocurrency that fulfill the conversion of fiat to bitcoin.