Trust Report seems to be irrelevant to this (from what I can tell from the brochure without being a vanta customer), because it's a way for a company to publish claims about itself. Crucially, nowhere does it say that an independent auditor verified those claims.
SOC2 broadly contains:
- A description of what the company claims to do
- A statement that the description is complete and accurate
- Auditor's testing procedure for verifying the company's claims
- The results of the testing
- The auditor's overall conclusion as to whether the company meets the bar for SOC2.