How many devices can I connect to a partner exchange?
There currently is no limit to how may devices you can connect to a partner exchange.
Some users report hitting a limit of 15 devices, but this is a bug. If you see a device limit error at any number of connected devices you should contact Brave support to get the problem fixed.
Eventually the Brave Wallet is planned to integrate a KYC process, which will allow users to transfer their Rewards to any Ethereum address of their choice. The release date for this feature being added to Brave Wallet is unknown. [Current February 23 2022]