reason is ik where the previous person got there coins from and yes i do care about privacy at times since i do transactions with other people from forums all the time.
If the coins you're going to receive is more than 0.1 BTC (minimum amount for CoinJoin IIRC) and they can send to Bech32 addresses (starts with bc1, legacy addresses may be able to send to SegWit, depending on the wallet used), the simplest way would be to use Wasabi.
Otherwise, probably Electrum then into a mixer (or even Wasabi if more than 0.1 BTC)? If you don't need to erase the trail at all, I'd say just Electrum would be the way to go.