Know that the wallet does not charge any fee. The fees are received by miners.
And miners also don't charge any fees because you pay those to compete with the others that want your block space, let's not get into this debate
You can use Electrum for it.
I need a web wallet that can deal with multiple coins, not just Bitcoin, so if somebody wants me to send him $10 worth of USDC on Solana I don't need a solana wallet then another one to receive 100 satoshi and another one to send 50 monero.