Sorry have been away for a couple of months and only now finally got back to my OP6. Using the UB touch installer, I got Focul up and running. A couple of minor issues, the date and time (despite been set as automatic) seems to revert to manual on reboot. I get the Qualcom Crash Dump screen whenever I leave it charging....and on reboot get the Boot Loader is unlocked screen.
I have not had time to explore much more than this at the moment.