Circle, the outfit that custodies USDC, is launching it's own dex called... wait for it... circle-dex.
I decided to check it out. I don't even want to put the actual link in here since it seems so strange to me.
I have not connected a wallet to it, so exploration is limited. But I noticed that it says Raydium at the bottom of the menu. Raydium is a Solona dex, and the docs link confirms this.
Solana is pretty strange to use with people who are used to EVMs with their subaccounts for different coins. But it looks like a regular dex skin for people who are used to defi.
I'm not really sure who this is targeted towards. Maybe large circle partners? There are already a number of dexes on Solana that use USDC.