The exchange on DEX exchanges does not require KYC, but I think doing the steps on it is more complicated than CEX and the gas fee will also be much higher. As a newbie to the market, perhaps CEX is still a safer and easier to use option. Binance can be considered as the best and most reliable CEX exchange but if you are afraid of KYC then you can use Kucoin, they don't require KYC but if it doesn't KYC then you will be limited per transaction.
except Uniswap, another decentralized exchanges have cheap transaction fee or swap. Decentralized exchanges on BSC, Solana , Cosmos or another chain could be considered as transaction place. maybe it step easy for us, only connect wallet and swap our token. Binance or other top Exchanges have most secure security layer and our fund guaranteed on there , so it should not worry anymore if using CEX.