I have installed GrapheneOS with Pixel 6 Pro. Unfortunately, some of the Android apps simply don't work.
But I have noticed a trend that with an update (sometimes android update, sometimes app version update), some apps stop working, i.e., they used to work and now don't anymore - they simply keep on loading. I have had a couple of experiences like that, for example, Stellarium used to work but since the last update, it doesn't. Same story with Money Manager. I do have Google Play Services installed.
I am not sure if there are some settings I need to change, or where the problem lies? The app developers usually don't support questions related custom OS installations either.
Does anyone else also face problems like that? And I wonder if there are steps I can take to find out BEFORE an update if the app will be compatible and not misbehave on GrapheneOS