Ethereum

Does this exist?

e.g send funds to A smart contract, smart contract anonymously sends to final B address (specified in "send to"). This simple, don't need anything else.

crafting farcaster.in + terminal.co + @usetab // from cape verde 🇨🇻

Onchain this hard as it would be quite easy to track specific amount that were send by one wallet and received by another (especially when its happening short period). Railgun/zkbob could potentially do what you want, maybe not in one click, but again it is tracable when using specific amounts and trying to do it fast.