In a way the United States has never been a perfectly capitalist society and various examples of government intervention in the market is abundant throughout history. The SEC has been in existence for many years now.

The major drivers of a free market would be the forces of demand and supply, this would allow those who show the ability to meet the demand of the public in taste and volume would thrive. This period of pandemic does shift the balance of the scale a bit, non-essential services are closed, SMEs are also hard hit, demand is equally regulated as movement of people is restricted. The lack of money in circulation also affects the market and by extension, the economy.

I believe there should be an intervention, at least until the market is again open, and people can go about business as usual.

I think you may have meant to ask the role of the government in the new system. [I think] They would say they are the support for the free market to ensure it doesn't collapse. Technically they regulate the market.