Are all Korean strokes horizontal and vertical?

It’s almost like that, but there are also arc types. Depending on the font type on the computer, the appearance types are slightly different.

There are two types of Korean characters, one is a character with vowels and consonants, and the other is a character with vowels and consonants ending in rhymes

Vowels? etc. (because they are their own The writing may be missing a few)

Consonants

Rhymes and endings, in addition to, there are? etc.