Hi @TomK, on the Galaxy S9 / S9+ with AOSP Android 10, encryption is automatically enabled. After installing and restarting LineageOS 17.1 and /e/ OS ‘Q’, the message ‘Encrypting’ with the ‘android robo’ briefly appears.
When installing TWRP 3.5.0_9-0 on the Galaxy S9+ ‘star2lte’, I eliminated this encryption via ‘Disable Force Encryption’. I can now enable/disable encryption independently in the S9+. Take back control …