first thank you for this fine release. I am interested in installing this rom but have a few questions which could also be interesting for other users.
1. I am currently using LineageOS 15.1, can I flash this rom directly after a clean wipe or do I need to flash the stock firmware first? I have read that flashing stock firmware could be dangerous regarding loosing the IMEI.
2. I have installed TWRP 3.2.1 and was trying to do a backup of EFS and persist partions. Only the EFS partition is selectable for backup, persist seems to be missing.
3. Is the stock camera working fine or is there a long delay when starting like in other 15.1 roms?