Why not tell us more how much exactly you want your friend to send you BTC?

If he just sending low amount, then take note of the huge fees when you are going to withdraw your BTC from Coinbase exchange it is not a good idea but since you said you are going to exchange to other crypto and planning to hold it for a long term it's fine but the problem is you don't have full control of your assets from Coinbase exchange unless you move it to Coinbase wallet or non-custodial wallet.

Tell us more about your plan about the BTC you are going to receive from your friend if it's just for holding or if you have a plan to send this outside Coinbase exchange don't attempt because the fees are expensive, except if you exchange it for other crypto just to get a lesser fee.