Complex sentence: Yuya has one of the most-subscribed YouTube channels in the world, she's the most popular YouTuber in the beauty and style category, and the most popular YouTuber in Mexico, with over 20 million subscribers.
Split into simpler sentences: Yuya has one of the most-subscribed YouTube channels in the world. Sge is the most popular YouTuber in the beauty and style category, and the most popular YouTuber in Mexico, with more than 20 million subscribers.