[8cvor6j844qw_d6]

I went with a separate non-critical phone when I had to communicate on WeChat.

[_a9]

This is what I do too. If i need to use or test something i don't trust then I use an old phone. All of the phones use crDroid(1) and I have scripts to quickly wipe and reinstall the OS whenever I need a full nuke.

(1) https://crdroid.net/