The following steps have led me to a semi bricked device:
1) installed TWRP via the official guide: https://twrp.me/motorola/motorolamotog7power.html
2) flash rom zip Havoc after following wipe instructions: https://forum.xda-developers.com/g7-power/development/rom-havoc-os-v3-4-t4080387
I am...