Assuming you find a verified unofficial build (likely Lineage 17.1 or 18.1), here is what you can expect compared to the stock firmware:
: Available as an unofficial beta build for those looking for a slightly lighter version than Nougat.
As of today, the does not have an Official LineageOS verified build on the lineageos.org website. However, using the Treble GSI method , the device achieves a "Verified Custom" status.