your friend doesn't seem to really understand how bitcoin works and how it can be said to be pseudonymity. all transactions on the bitcoin network are recorded on the blockchain, meaning that everything is tracked, but as long as you don't use a centralized exchange that uses KYC, doesn't use repeated addresses, and uses the TOR network, it's completely safe and secure. so what your friend said was an exaggeration, and you don't need to switch to monero just for that reason alone.