A country can QE forever, but this will not put food on the table or shoes on people's feet. If people want those things, they must either be produced or imported. QE doesn't help with either of those. Production is a physical act, not a monetary one.
And if you want to import from somewhere, then you need that nation's currency to do so. Which means that in turn you must have produced something to exchange for that currency.
What they would lack in the short and medium term are high tech products like chips, advanced medicine.
Given enough time and drive any energy and food surplus society can reinvent the high tech stuff.
Of course it doesn't mean they would, seeing how corrupt the whole ruling class is. But it is theoretically possible for them to be totally independent of the rest of the world. They are blessed with too many natural resources to not be able to do it.
It would, if USA was pursuing QE with already-high inflation.
You mean stuff like oil, wheat, fertilizer or aluminium? Yeah, there's no way Russia will be able to manage that. /s
and Russia still perfectly sells oil and gas.