@sluttony - assuming the devices themselves aren’t compromised, the only way I know for governments to break the encryption is to run a proxy firewall like China does. This site will break and be nonfunctional if it encounters that scenario as some users have reported when trying to hit the site from inside a corporate firewall.
And VPNs get around proxy firewalls. Which then means the government has to ban VPN apps and block the IPs when it identifies them. I’m headed to China in September and there’s a lot of discussion among tourists as to which VPNs work and making sure they’re installed before landing in the country. There’s also eSIM cards that somehow get around the firewall, but I’m suspicious of them. I feel like the Chinese government may be giving tourists a rope and letting them hang themselves with it.