Whichever network you have the token on requires a particular token that is used as “gas” to move it. So as you should have seen on basic guides: Below is going to be Network = Gas token.
- Bitcoin = BTC
- Ethereum = ETH (on Ethereum)
- Optimism = ETH (on Optimism)
- Solana = SOL
- Cardano = ADA
- Binance Smart Chain (BSC) = BNB
The list goes on.
If your token is on Ethereum, then you just need ETH from Ethereum.
Brave tends to offer estimates based on the current value. For example, screenshot below:
Notice how it specifies how much for the gas fee?
But typically people use tools like https://etherscan.io/gastracker which show the current gas prices and overall trend. If we see that perhaps different gas is needed on Brave Wallet, you’d see that I had an Edit
button available where it showed the gas fee on my screenshot above. Using that lets me get to a menu like below:
Well, Brave kind of does. Though it requires us to separate things. So like if I have 1 ETH and I want to send it all somewhere, Brave may tell me I need to use 0.00002 for gas. Places like Coinbase would then show you their network fee and gas fee, subtract it from what you want to send, and you’d be fine.
But Brave will just show you the fee and expect you to do the math. So if I have 1 ETH that I want to send somewhere and I need 0.00002 in gas, I know I either need to subtract that from my 1 ETH or I need to buy 0.00002 ETH. So either I send 0.99998 ETH and make sure the gas is remaining in my account or I buy the extra to cover the transaction.
Seeing this for the first time may seem a bit complicated, but it is a lot easier than it may seem to you. That said, I do agree that keeping crypto in self custody wallet usually is best only if you’re handling large amounts. Otherwise it likely will be easier and cheaper to rely on places like Coinbase.
Nothing can transfer out or even attempt to transfer out unless someone with access to your Wallet authorized it. The screenshot you shared is Decentraland, which is a Web3 game. It would seem you or someone with direct access of your device (and password) tried playing the game and possibly buy things. Either that, or could even have been something like seen discussed at https://www.reddit.com/r/decentraland/comments/rq61tx/scammed_on_on_1st_login_onto_decentraland/ where person signed for a fake version of it.
Typically there are no reductions in your balance if the transaction is rejected. Such as if you were to look at your account, we likely wouldn’t see any of that reduced. But to confirm that we would need to know the address at which point you’d pull it up and see what’s on there and what transactions have been made.