From World War II, the problem with keeping it at your own place was that, if someone overruns your country, your government-in-exile may be able to keep control of gold that is outside your country. Gold that is inside your country, however, is controlled by the invader. (And may be looted by them. Even if you later get your country back, the gold may be gone.)
That exposes you to the risk of the country holding it. But for much of recent history, the US was seen as a lesser risk than a Russian invasion. Whether that is still the way the risks balance... I think we each may hold our own opinion on that.
Well, influential people (that is, people fairly close to Putin) in Russia are saying that, after Ukraine, Russia will take Poland. Yeah, that's not Germany, still less Italy. But it's much closer to Germany than I would be comfortable with if I were German...
Duma does not make any major decisions. They just rubber stamp what Putin tells them to. Medvedev is Putin's toy. Listening to them is the same as to some western lunatics who while formally being part government spit some bullshit like "the world flat."
That exposes you to the risk of the country holding it. But for much of recent history, the US was seen as a lesser risk than a Russian invasion. Whether that is still the way the risks balance... I think we each may hold our own opinion on that.