We haven't had that much fiscal stimulus in the US releative to the size of the economy. It's a missed opportunity considering money is basically free right now and T-bills return a fixed coupon (so even if interest rates were 5% in 5 years' time it would have no effect on the cost of servicing debt issued today).
The EU has trillions to spend. This is a federal problem, but some countries in Europe don't want to admit because they want to cling to the illusion that monetary union can exist indepedently of fiscal union.