If it’s stuck on pending it looks like the funds haven’t left the Brave Crypto Wallet as you’re not able to locate it with Etherscan. Have you received coins into your Uphold crypto wallet from other sources?
Brave Crypto Wallet transactions are independent of Brave (company) so I am not sure if Brave support can help as you hold the private keys. But if their wallet has a bug then hopefully they retrieve you funds.
Brave is a great, but you may be better off using the official MetaMask wallet just to be safe.