I feel LineageOS + F-Droid is often underrated when it comes to these discussions about alternate ecosystems. If we're ready to let go of name brands, then F-Droid has some very high quality apps[1] built with passion over profit.
But I agree that the initial friction to setup LineageOS on the device is far too high for a non-technical customer, Something which could be only resolved if a devices ships with LineageOS(I think even F(x)tec, Fairphone requires the user to flash LineageOS) but then again memories of that fateful tie-up with device manufacturer which ended CyanogenMod would be fresh within LineageOS team.
Now that's the catch-22, Alternate exists but not for everyone.
But I agree that the initial friction to setup LineageOS on the device is far too high for a non-technical customer, Something which could be only resolved if a devices ships with LineageOS(I think even F(x)tec, Fairphone requires the user to flash LineageOS) but then again memories of that fateful tie-up with device manufacturer which ended CyanogenMod would be fresh within LineageOS team.
Now that's the catch-22, Alternate exists but not for everyone.
[1] https://github.com/SimpleMobileTools