No. Financial readiness is not a government determination. Classification, eligibility, admissibility and visa availability remain applicable.
Identify what the budget actually proves
It may show an intended source of payment without showing completed vetting or approval. Do not describe internal financial authorization as an immigration decision.
The official Gold Card page presents a sequence of application and processing fee, vetting, further instructions and gift, followed by permanent residence through an existing employment-based category as determined by the authorities and subject to visa availability. A nonrefundable processing fee of fifteen thousand United States dollars per person, successful vetting, and then a gift of one million dollars to the U.S. government, or two million where a corporate sponsor gives in respect of an employee. Because the case ultimately rests on an existing category, the ordinary conditions of that category continue to apply: admissibility, the medical examination, the security and background review and the availability of a visa number under the visa bulletin.
Money moves one way here, from the applicant to the U.S. government, and it confers no classification and cures no ground of inadmissibility, so a company signing off the spend is paying for a process rather than for an outcome.