I don’t think firms would fire a lot of employees (!) before first trying to access credit markets to do something as basic as cover a short term low-risk obligation operation like payroll.
There is a well-established market for covering short term corporate obligations like this. Many firms large and small avail themselves of it. Take your audited financial statements and you can find lenders. While there may be a few firms who can’t make payroll in the short term, even then I would expect layoffs would be a last resort.
This tweet thread seems written for maximum drama with a minimum of supporting information.