I don't like the answer? You've not given one. A or B. A, contributes. B, doesn't. You can't answer.
One letter.
Oh but I have given an answer. You’re trying formulate an experiment in a sterile environment. The world is not a perfect place and is in total disruption from Covid and transitioning into a world with covid. This is the core problem, or was until the Russians went all 1939 Germany on Ukraine. Now we have two major factors for economic disruption.
Now to your money supply issue I will refer back to previous posts where I told you it can be both and they way we tell which is the right answer is through measurements of economic activity. Things like savings rates, spending, credit utilization, bank lending, speed at which money moves. If everyone is hoarding then no, stimulus measures have little to no impact on inflation, if everyone is spending then yes stimulus will have an impact. This is why we measure.