Can I buy crypto on Uniswap?

I'm just getting started in the crypto world and I've heard a lot about Uniswap. Can I buy crypto on Uniswap?" As a beginner in the cryptocurrency realm, I'm constantly on the lookout for reliable platforms to make my first investments. Uniswap seems to be a popular choice, but I'm still a bit unclear on its functionalities. I've read that Uniswap is a decentralized exchange, which means it doesn't rely on any central authority or intermediary. This sounds exciting, as it gives me more control over my transactions. But my question is, can I actually buy cryptocurrencies on Uniswap? I understand that Uniswap is mainly used for swapping tokens, but I'm wondering if it also allows for the purchase of major cryptocurrencies like Bitcoin or Ethereum. Or is it limited to swapping between different ERC-20 tokens? I'd really appreciate some clarification on this. If Uniswap isn't suitable for buying crypto, could you recommend some other platforms that are beginner-friendly and offer a wide range of cryptocurrencies to choose from?