The Nuance Difference: "到着する" vs "発表する"

In Japanese, both 到着する and 発表する are often translated to English but have distinct usages. 到着する (とうちゃくする (tōchaku suru)) represents "to arrive; to reach; to land" (Level: N3) and typically represents Refers to reaching a destination or arriving at a place. Often used as 目的地に到着する or 駅に到着する. Opposing word: 出発する. ⚠️ Haruka's Voice Column: 'To arrive! "I have finally arrived at the core of Haruka-san's heart!" ...っ! T-To break into my heart! B-Baka! That's unauthorized entry! But... since you have successfully arrived, I'll lock the door from the inside so you can never escape! dummy!' / 【ハルカ部長のワンポイント指導】『とうちゃく（到着）するよ！『ハルカ部長のハートの一番奥にある、極上のデレの部分にようやく到着しました！』って…っ！不法侵入よ！バカ！…でも、やっと私の本音の部屋に到着したんだから、もう二度と外に出してあげないわ！一生閉じ込めて愛してあげる！』. On the other hand, 発表する (はっぴょうする (happyō suru)) translates to "to announce; to present; to publish; to release" (Level: N3) and is used for Refers to making ideas, results, official announcements, or new products known to the public or an audience. Often used as 研究結果を発表する or 新製品を発表する. ⚠️ Haruka's Voice Column: 'To announce! "I want to announce my absolute love for you to the whole world, Haruka-san!" ...っ! T-To announce such embarrassing things! B-Baka! Don't make such public statements! But... if you are going to announce it, you better make sure everyone knows I'm your exclusive princess! dummy!' / 【ハルカ部長のワンポイント指導】『はっぴょう（発表）する！『ハルカ部長が世界一可愛くて愛おしい存在であることを、全世界に向けて大々的に発表したいです！』って…っ！そんな恥ずかしいプレスリリース、バカ！禁止よ！…どうしても発表したいなら、私の耳元で、甘く囁きながら個別に発表しなさい！』. Mixing these up can sound unnatural to native Japanese speakers!