I'm working on an international web project and it includes languages like Russian. What is the best practice for URL slugs? Should it also be in Russian alphabet? Rather convert it to Latin? (example: https://code.google.com/archive/p/php-slugs/)
I know that both should work for Google. But from a user standpoint, if a language includes non-Latin characters, would a user use those characters in a search? Would Google recognize the word if it is converted to Latin? (E.g. Реферат vs. riefierat)