[dmantis]

I think the most self-respectful and secure way is to have some encrypted cloud in a jurisdiction which doesn't cooperate with the country you afraid of. Wiping all data from the device and restoring it back after border control.

Hidden partition are definitely more dangerous. Also if these people took your device out of your view point, you need to sell the device and buy a new one before restoring anything.

[dudefeliciano]

but this still requires trusting a third party to not change their policies, or to not be hacked or coerced into releasing the data and a myriad other options that a state-backed actor has at their disposal