How many projects are on arbitrum?

Could you please elaborate on the current number of projects operating on Arbitrum? I'm curious to know about the scope and diversity of projects utilizing this platform. Could you provide any insights into the types of projects that are prevalent on Arbitrum, as well as any notable or significant projects that stand out? Additionally, is there any trend or pattern in the types of projects choosing Arbitrum as their preferred platform? I'm also interested in understanding the growth rate of projects on Arbitrum and whether there are any predictions or estimations for future growth. Thank you for your assistance in clarifying these points.