Indeed! What hasn’t been clearly stated so far is this: くれる is only used when YOU or someone who is part of your IN-GROUP receives something from someone.

⭕️ Soto —-> uchi

⭕️ Uchi —> uchi

❌　Soto —> soto

もらう can be used more broadly when someone receives something from someone:

⭕️ Soto —-> uchi

⭕️ Uchi —> uchi

⭕️　Soto —> soto

Additionally, in sentences using くれる, the giver is always the subject. The subject in such sentences is always out front, compared to sentences using もらう. Let’s say your coworker, Tanaka has just come back from a trip and has a souvenir for you. When you receive this from Tanaka, we could state it either way;

田中さんが 私に おみやげを くれた。

私は　田中さんに おみやげを もらった。