user112463: How do I send bitcoin to multiple recipients at once? Like this. Also, I would like to know if the reason I see people do this is for privacy reasons? As when I sell items online they usually send the btc to multiple recipients at once.

user-1: You can "send to many" addresses in the same transaction, most of the wallets have options to create a transaction with multiple output addresses.

Also, I would like to know if the reason I see people do this is for privacy reasons?

There can be lot of reasons. Batching is normally done by exchanges and businesses to use bitcoin in a better way and pay less fees. I am not sure if there is any benefit related to privacy in batching except if the outputs are of similar amounts or amounts are hidden in the case of L-BTC(Liquid) confidential transactions.
Batching can save upto 80% fees by David Harding: https://bitcointechtalk.com/saving-up-to-80-on-bitcoin-transaction-fees-by-batching-payments-4147ab7009fb
Electrum:

Bitcoin Core:


112463: <p>How do I send bitcoin to multiple recipients at once? Like <a href="https://blockchair.com/bitcoin/transaction/506c19f7748d8de0a8a34db84976bcae0f008ff242a0ca3c7cfe75e8f9fc7557" rel="nofollow noreferrer">this</a>. Also, I would like to know if the reason I see people do this is for privacy reasons? As when I sell items online they usually send the btc to multiple recipients at once.</p>
 -1: <p>You can &quot;<em>send to many</em>&quot; addresses in the same transaction, most of the wallets have options to create a transaction with <em>multiple output addresses</em>.</p>
<blockquote>
<p>Also, I would like to know if the reason I see people do this is for privacy reasons?</p>
</blockquote>
<p>There can be lot of reasons. Batching is normally done by exchanges and businesses to use bitcoin in a better way and pay less fees. I am not sure if there is any benefit related to privacy in batching except if the outputs are of similar amounts or amounts are hidden in the case of L-BTC(Liquid) confidential transactions.</p>
<p><strong>Batching can save upto 80% fees</strong> by <a href="https://bitcoin.stackexchange.com/users/21052/david-a-harding">David Harding</a>: <a href="https://bitcointechtalk.com/saving-up-to-80-on-bitcoin-transaction-fees-by-batching-payments-4147ab7009fb" rel="noreferrer">https://bitcointechtalk.com/saving-up-to-80-on-bitcoin-transaction-fees-by-batching-payments-4147ab7009fb</a></p>
<p><em>Electrum:</em></p>
<p><a href="https://i.stack.imgur.com/1q28T.png" rel="noreferrer"><img src="https://i.stack.imgur.com/1q28T.png" alt="electrum" /></a></p>
<p><em>Bitcoin Core:</em></p>
<p><a href="https://i.stack.imgur.com/apHnR.png" rel="noreferrer"><img src="https://i.stack.imgur.com/apHnR.png" alt="Bitcoin-Core" /></a></p>
