Just because your government can break your opsec doesn’t imply it’s not worth doing your best. Maybe you’ll avoid being caught in a lower-cost/mass surveillance system and you might not do anything to attract a more dedicated attack.
Re fingerprint: there’s risks around having your fingerprint lifted from something you touch (eg a glass). It’s a movie trope but it’s not that far fetched from being doable. Eg from 20 years ago: https://www.theregister.com/2002/05/16/gummi_bears_defeat_fi...
Just want to point out that foreign nationals are apparently sometimes fingerprinted and their DNA swabbed too on entry (according to the travel advice of several governments) - and electronic devices are sometimes searched at the border too. Biometrics are routinely taken for longer stays according to: https://www.themoscowtimes.com/2021/07/01/russia-imposes-bio...
In Russia they don’t use harvested fingerprints to unlock phones. They use wrenches and flat irons to get info and bad windows on higher floors and polonium tea to prevent anyone else getting info.
Re fingerprint: there’s risks around having your fingerprint lifted from something you touch (eg a glass). It’s a movie trope but it’s not that far fetched from being doable. Eg from 20 years ago: https://www.theregister.com/2002/05/16/gummi_bears_defeat_fi...