Can you buy Polygon on Uniswap?

Excuse me, I'm a bit confused about the cryptocurrency market and I was wondering if you could help me clarify something. I've heard about Polygon and Uniswap, and I'm interested in acquiring some Polygon tokens. However, I'm not sure if it's possible to buy Polygon directly on Uniswap. Could you please explain if this is feasible, and if so, what steps I would need to take to complete the transaction? Additionally, are there any fees or other considerations I should be aware of when using Uniswap to purchase Polygon? Thank you for your time and assistance.