How to display category descriptions in Bitrix?

Question

CMS

Tell me how to display the description from the additional product fields on the product page?

That is, I have several product sections, each of them has its own names and descriptions, tell me where to dig to display the name and description on the product page?
I think I found what I need, but I don't understand how to get it out

"SECTION_USER_FIELDS" => array("UF_NAME_UA", "UF_NAME_EN", "UF_DESCR_EN", "UF_DESCR_RU", "UF_DESCR_UA", "UF_TABLE_EN", "UF_TABLE_UA", "UF_TABLE_RU", "UF_TABLE_COLS", "UF_SHABLON"),

Answer 1

to display the title and description on the product page?

If you have a catalog component, look in the catalog parameters for the fields that you need to get.
If they are, get and edit the output of the section.
If not, reach result_modifier.php by section ID and output