Are there ready-made solutions for a 3-column navigation menu?

Question

css

You need to implement something similar. (See screenshot)

Navigation in 3 columns.
So that in the 1st column there are the main categories => in the 2nd column of the subcategory selected from the first column => in the 3rd column there are subcategories selected from the 2nd column.
Moreover, the implementation provides for the output of categories in the form of a list, and not in the form of a drop-down menu.
Thank you.
PS In the front-end, I'm a cancer, so don't throw stones in my direction.

Answer 1

cssmenumaker.com/menu/flat-accented-dropdown-menu shove
a little css and you're done

Answer 2

There is no finished one, because the unfinished is written in 1 hour