The "Korean - South Korea(한국어 - 한국)" is missing on the launcher settings.
[media]
It should be there, but it doesn't.
Reproduce Step:
Open your Minecraft Launcher. It'll bring you the latest one.
Go to Settings, and then search for "한국어 - 한국" or something similar to this.
Thank you for your report!
We're tracking this issue in MCL-22070, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki