You can’t rely install that. There can be microg (not sure if it’s in the distributed rom), but there is no system integration with microg, so G apps cannot work. Neither a lot of apps based on play services.
Microg however offers a modified LineageOs rom where they have installed the system integration for micro G. On that rom, the G apps and apps requiring G services do work.
Maybe it could be a bit more privacy friendly than using the direct Google services, but it still connects to Google to get some services for some apps.