Why Is It So Difficult To Build an Alternative Operating System for a Smartphone?

This post was last edited 0 minutes ago. Recently, someone sent me "Will Linux phones become a viable alternative to the Android/iOS duopoly?" by Amos B. Batto, an interesting technical blogger who does deep dives into topics ranging from e-bike legislation to alternative mobile phone systems. As I began to read, I realised how little I know about smartphones and their related jargon and acronyms. I've been experimenting with alternative mobile operating systems for years—my family members have either /e/OS, a Linux variant, or GrapheneOS and I use the latter myself as my daily driver—and I did that by following online guides, or using easy installers, where available. I did, however, have the awareness that developers of these alternative systems seem to always be fighting against the current. My own experiences with Linux operating systems taught me that it is not straightforward to get something like a phone's a camera to work properly on an alternative system, but up until…