After deploying an upgradeable contract with Truffle, what contract address do I interact with, the main or the proxy

[Skyge]

Hi, welcome!

@Zhiwen_Huang

After deploying the upgradeable contracts to the blockchain, which contract do I interact with in order to interact with the main contract?

The proxy contract.

And there is an outdated article, maybe you can have a look.
OpenZeppelin Upgrades: Step by Step Tutorial for Truffle - Smart Contracts