Is Uniqlo fast fashion?

I've been hearing a lot about Uniqlo recently, and I'm curious to know if they're considered a fast fashion brand. From what I understand, fast fashion is all about quickly producing and distributing trendy clothing at low prices, often at the cost of sustainability and quality. Does Uniqlo fit into this category, or are they more focused on durability, sustainability, and timeless designs? I'd love to hear your thoughts on this, and any insights you might have on how Uniqlo positions themselves in the fashion industry.