A good 'cloudless' fall back when crossing the border is to backup to an encrypted external SSD or even better a USB stick and stash it in your checked-in luggage. A stick can be hidden inside something else, overlooked if your baggage is searched. You can also encrypt a stick and put it in the post, to send it to your destination before you fly.
Another is to fly with a burner phone, faux social media, faux email account. Your daily driver laptop and phone are powered off in checked in luggage