Why would it half your ram and double your battery life? It's a re-implantation of google API's.
It's probably a lot less chatty, and wireless data transfer eats battery.
Re:So long, farewell and goodbye
by throwaway2048 on Sunday June 18, 2017 @02:25PM
(#14582044)
but without most of the crap
Is it good for daily use?
Look components state here: https://github.com/microg/android_packages_apps_GmsCore/wiki...
I discovered microg only recently and was instantly very interested but I am a heavy user of Cast so that's a big no for me, though I'll happily jump on it once it's done (if it's possible).
For what's worth I can use Cast (Miracast) without installing Google services. If you would like to get rid of Google services maybe consider buying a Miracast dongle to replace Chromecast?
helps significantly, its an implementation of playstore APIs including google maps (which you can swap out for OSM) and Google Cloud messaging.
Apps that depend on this stuff will run even without Google Play services, and as a huge bonus you wont be feeding back constant spywar.... "telemetry" data to the Google mothership.
Does wonders for your battery life and ram usage too! using microg doubled my available ram and doubled my battery life too.