So I got ahold of this Xperia XA2 with Lineage OS and would like to flash SFOS on it.
I thought it would be easy because the bootloader is already unlocked, but now found out that the Lineage build is already based on Android 10 - which IIRC causes troubles when trying to flash SFOS on it.
I’m a bit out of my league here and unsure of how to proceed: Should I try to downgrade Lineage OS to an Android 9-based version before trying to flash Sailfish OS? Or to a custom Android 9? Or is Lineage a different beast and Sailfish flashing should go smoothly?
I would very much appreciate an assessment of which steps to take and which to avoid here.
Edit: I am working on a Linux computer with an Ubuntu-based OS.