How to send BTC from Atomic Wallet?

Could you please elaborate on the steps involved in sending BTC from Atomic Wallet? I'm interested in understanding the process, including any necessary precautions or considerations I should be aware of. Are there any fees associated with the transaction? How long does it typically take for the BTC to arrive in the recipient's wallet? Additionally, are there any specific requirements for the recipient's wallet address, or can I send BTC to any BTC address? Thank you for your assistance in clarifying this process.