Is there any way to quickly wipe and restore a full macOS? or other OS for that matter? As someone who travels, well, all the time, it seems a massive amount of

Is there any way to quickly wipe and restore a full macOS? or other OS for that matter? As someone who travels, well, all the time, it seems a massive amount of overhead at the moment. If everything is in the cloud, that means I have to be sure to have fast, reliable internet at my destination (which is definitely not always the case). And any way I can think of to securely travel with a copy of my data is just the same problem: the CBP can request I unlock the other device. Ideally, we just wouldn't be able to be compelled to unlock our data, without the high probability of being forced to hand over the device because of our refusal. How is this not a violation of the Fourth Amendment? It's frustrating in the least.