Circle's @arc, Gas directly uses USDC, super fast confirmations, and the list of institutions is right there—absolute dominance. Mainnet is set to launch on September 16, and as expected, @OKXWallet_CN will support it right away. Not sure if those cross-chain bridges that already issued tokens will support it immediately, but the ecosystem bridges should be on board right away, including Arcoss, Stargate, Axelar, wormhole... Lastly, check out the official ecosystem website to get familiar with the project in advance: http://(arc.io)/ecosystem