- Use your prefered payment method to buy btc from one of the p2p well known exchanges (bitpanda/localbitcoins/paxful..).
- Withdraw the btc to your personal wallet.
When you buy monero with bitcoin, does anyone know you bought monero, I mean they might guess you did, but can they prove it?
Also does anyone know you bought bitcoin if you have not made any transactions with it. Once you buy monero, what do they know, you once owned bitcoin?