Graphene maybe but it has a very limited set of devices it works on. Lineage may not be actually. They rarely go against what Google does. Developing any norma

Graphene maybe but it has a very limited set of devices it works on. Lineage may not be actually. They rarely go against what Google does. Developing any normal user facing OS with lots of bells and whistles so it has a useful and modern closed-source friendly app ecosystem is insanely hard. It is the huge software stack that Google put in Android that makes it nicer for many app developers to make apps for it. Those basically un-Linux the Linux parts of it to provide stable interfaces. I don't think this will change in the open source world in the next 3 decades and with increasing hardware complexity I expect even less success from independent Linux phone projects. If such a project wants to be successful it has to do many things against the usual Linux. I don't see that happening without any corporate support.