Uniswap would be the best way to swap ETH without doing KYC but you will get Wrapped Bitcoin which is basically the same, just Wrapped to be compatible with the Ethereum Blockchain.

I have good luck with https://simpleswap.io/

As always take your time, double check your inputs, and I would do multiple small swaps (as not to put all your eggs in on basket).

You can also check out something like

• https://fixedfloat.com/
• https://sideshift.ai/btc/busd

If you want to swap into BTC on the base chain, Liquid or Lightning