Don't put a sim inside the phone.. for one. Secondly, don't run a googled device. Make sure it's something like GrapheneOS and always in airplane mode so your cellular radio is off at all times. You can use airplane mode and still use wifi or Bluetooth. But make sure you're only connecting then with a VPN.
Nice recommendations, 95% agree. Rethinking this over and over again: Most of us do not have a threat profile to doubt the integrity of the VPN provider. Your thoughts? nostr:nevent1qqswqr802ewt725254l8ewnlyhwdc3387wy0hw8vj5uucl2ujqf5ptqppemhxue69uhkummn9ekx7mp0qgsfa0w04jguuxnes3e94x39gw7p62sewsusnke6kqe8gr2n6kwc0zcrqsqqqqqp3p70xn