Unfortunately stopping paying taxes won't do shit. I mean, that has to happen, and I will be exposing all the gory details of why soon, but it won't actually stop anything.
A great deal of the money spent on projects doesn't come from taxes (at least not "income" tax). All congressional spending ultimately comes from loans taken out by congress from the private organization called The Fed. The Fed creates this money out of nothing, backed by our future labor (i.e. something that doesn't actually exist in the present moment). It gives that loan money to congress, and we pay the interest on it with our "income" taxes. These loans cause inflation by increasing the money supply.
Now, inflation IS a tax, but not a direct tax. It is a tax burden shared by all holders of the currency we call "money" that is really a debt IOU "bank note" piece of paper handed out by the Fed. Inflation is a tax on our savings, not our labor. The increase in money supply reduces the buying power of each dollar. It is a hidden tax.
Back to why it doesn't matter if we pay taxes...
If we stop paying taxes they can still spend all they want to. Its ALL paid by loan. It always has been (since 1933 or so), it will all be paid by loan in the future (until the system explodes). Currently some of our taxes (after the Fed's and IMF's cuts) go to pay off the loan, but really all that stopping to pay taxes will do is make the loan interest payments larger.
Although, if everyone did it, it would expose the system, which would likely be a victory for We The People (or The Great Reset). But it wouldn't stop the payments for "covid funding" directly. Those all come from Federal Reserve loans.