How to buy on Polygon network?

Could you please elaborate on the process of purchasing on the Polygon network? I'm curious about the steps involved, starting from setting up a wallet to actually executing a transaction. Additionally, I'd like to know about any safety measures or best practices that should be followed while buying on Polygon. Could you also provide some insights on the fees associated with transactions and whether there are any limitations or restrictions to be aware of? Thank you for your assistance in this matter.