I used Sailfish.

Then I discovered that "encryption" for them was using Luks with the numeric unlock pin as encryption key (which most people sets to 4 digits). They marketed themselves as a secure OS.

No passphrase option. I brought up that it was trivially brute-forceable in the forums and they vehemently fought the idea. My post eventually disappeared.

They were doing government contracts in Russia etc. Iirc. I put some dots together and phone rests in a drawer ever since. I have no idea how things are now though.

Nothing has changed.