Judging from the number of projects, trust companies are all self-developed projects, while the three parties are projects of many companies.
Judging from the purchase procedure, it is exactly the same. Your money is directly deposited in the trust company's escrow account in the bank, and the contract is also signed with the trust company.
From the service point of view, the three parties will hold some thank-you meetings and the like, and it is also possible to give something when buying a trust.
In terms of risk, the risk is the same.