The first iphone was released in 2007. That's like 15 years ago. People were probably toying with "smart" phones already few years before that. Its not that the world doesn't know how to manufacture smartphones and/or write software for them.
How come in 2023 there isn't an open source mobile phone that is reliable as a daily driver phone? With a financially healthy entity behind it. NB: It doesn't matter if its android or linux or firefox os or anything else.
Surely there is a market for such a device. 1% of a billion is a big number.
Is it because (pick all that apply or please add the true reason):
* Are manufacturers a cartel and won't allow breaking the duopoly? (Doesn't seem plausible, Samsung toyed with Tizen)
* Are governments happy to strike deals with the duopoly? (Doesn't seem plausible, at least in the EU)
* Is it the telecoms that somehow don't want this to happen? Why would that be?
* Is it the FOSS community that can't get its act together? (Doesn't seem plausible, both F-Droid and e.g., KDE mobile communities seem more than on top of supporting this)
So where is the bottleneck? A free mobile device is maybe the most important piece of technology one could have at this moment. I can imagine various actors that would not want it to happen but at the same time all sorts of other actors that would very much want it to happen.