MicroG is a sloppy and ineffective reimplementation of google services that does not meet GrapheneOSs privacy, security, and usability requirements. MicroG does not make you degoogled and is not a compromise between being degoogled and making apps work. GrapheneOS, with or without google services, has far better app compatibility.

If you need a functional smartphone that runs the apps you need while reducing exposure to google, GrapheneOS is the best option for that by far.