French individual tourist visa, I live in a friend's house, can I say it when I enter the country? It's better to book a hotel and cancel.

It is recommended to prepare hotel orders. Cancel after customs clearance. No Schengen entry card! When you are questioned by the customs, if you stay at a friend's house without a hotel order, you may be repatriated directly. If you cancel the hotel before entering the country, you will stay at the hotel when you enter the country. Don't forget that people can check it in your order! It's a lie to verify the cancellation of hotel reservation! The result may still be direct repatriation.