well, if you're a die-hard idealist, you could always use microG [0]
if you're not, you can still use Gapps nano or pico. thats basically just the play store and the service api.
if you're not, you can still use Gapps nano or pico. thats basically just the play store and the service api.
It's the same OS, and 99% of people that install Lineage install the GApps otherwise the device is barely usable.