好的 is the default polite acknowledgment in chat and work messages - warmer than a bare 好 but more neutral than 好嘞. In workplace messaging, replying 好的 is safe; just 好 can feel curt; 嗯 can read as cold. 收到 is the acknowledgment for instructions.
grammar
Here 的 is a soft sentence-final particle, toneless, not the possessive marker. Similar pattern: 是的 (yes), 对的 (right).
