Can I buy render on MetaMask?

Could you please clarify for me, is it possible to purchase render tokens directly through the MetaMask platform? I'm a bit new to this cryptocurrency world and want to ensure I'm making the right moves. Do I need to connect to any specific exchange or service first? Or can MetaMask handle the transaction independently? Also, would there be any fees involved in such a purchase, and if so, how can I estimate them? Thank you for your assistance in this matter.