It doesn't have to be like this, but it is also not 'early days' anymore and we have given this idea lots of time to gain any meaningful traction and it's very clear that there is almost no interest from the wider industry.
Thus, as demonstrated for many years of failed alternatives, unfortunately buzzwords like 'privacy', 'non-free software' and 'Linux' have little to no use to gaining traction and selling to mass market in a comparable manner against the existing duopoly.
And before you say 'Android', it is has tons of closed source userland software and subsystems and will get even worse once it moves over to Fuchsia OS. Therefore 'Android' as a free software example is disqualified.
We are talking about Linux distros designed to run on phones with 'free software'.