Thanks for this information. Well, there is an adequate respectable alternative based on Android 13: LineageOS-20.0-for-microG build 2023.11.07 from the Marvin Wißfeld Team.
@GaelDuval: A conversation with Marvin Wißfeld, microG’s creator and maintainer
@eDevelopersBlog: microG - What you need to know, A conversation with its developer: Marvin Wißfeld