The easy way, follow lineage tutorial:
neageos.org/devices/griffin
May I contact you if I have any questions?
I have a piece of software called RSDlite, I haven't used it I just have it downloaded and ready, it's what you use to flash stock roms to motorola devices, I guess it's the Motorola equivalent of Heimdall
can I use this to skip the need for unlocking the bootloader installing a recovery thing?
Since the guide mentions that I can (optionally) get GApps I am supposing that Griffin is a custom rom image.
Do you have a clean simple ROM that you could recommend that could be flashed onto my phone with RSDlite? I'm just after the stock experience, I am aware that it seems official Android stock roms are considered proprietary now sadly.
Ie you're expected to buy a new phone to "properly" get these builds.