NO Ukrainian spelling check on macOS Catalina 10.15.4

Hello, dear Apple team!

I live in Ukraine, and use 3 languages in my work, life, speaking, etc. They are: Ukrainian, English, Russian.

In English and Russian spell checking works great. But Ukrainian language is NOT EVEN AT THE LIST in the macOS system. But there is 20 other languages!

I’ve tried to add more than 5 different dictionaries .aff and .dic files in Library/Spelling = but it DOESN’T works normally.

Misspelt words don't have any suggestions for the correct spelling. This means the auto-correct feature doesn't work. The strange thing is that this works perfectly in iOS, so it's weird it's not simple to get working on such system like macOS.

In Ukraine there is more than 40 million people, and Apple has no Ukrainian spell checking for such big country. Please, fix this bug and add a normally spell checking for Ukrainian language, that it could work automatically in this mode:

English-Russian-Ukrainian

Please, make it happen! Pleeasee =(