Feeds import with multi-language not working Drupal 9.5.8

Doing multilingual imports is possible to do with Feeds, but for certain workflows there is a known bug and a known missing feature. These are the following:
🐛 A translation already exists for the specified language Active
✨ Add mapping target for config entity 'language' Active

See #3263803-3: Multilanguage CSV Import possible? → to read what types of multilingual imports are supported.

I've on my todo list to document how to do multilingual imports, but since it is not high on my list I don't expect to get to that soon.

Hello @MegaChriz,

Thanks for the input, I am using the JSON feed import option, do you have any other reference link please let me know.

Tagging issue with "multilanguage", so I can find this issue back as soon as I plan to focus on Feeds multilingual issues again.