We were doing R&D around privacy topic for blockahin in about two years and in late 2019 launched a universal privacy sidechain for Ethereum, which allows private transactions for ETH and ERC20 https://ethresear.ch/t/incognito-mode-for-ethereum/6232
The tool is universal and can provide privacy for any kind of blockchain assets.
We feel that we could have awesome synergy with Brave and I am actively looking for a chat about this.
I would appreciate any kind of recommendation who would be the best person to talk about it?
Thanks in advance.