Hopefully the respective country’s embassy and place of work (outside of work, study I don’t see why anyone would want to go to that hellscape) can step in. Like check in with your significant other post landing when you’re waiting at immigration checkpoint. And if you’re not heard from after that, alarm bells should go off and embassies should be informed.

Buy a burner phone. Use a newly created email. Don’t install any of your socials (not even lemmy).

Use only Signal (with messages auto deleted after being read) to be in touch with the really close friends and family.

Don’t bring your personal laptop.

If it’s a longish stay you may install socials a few days after completing immigration. But don’t use fingerprint or Face ID in that case.