Lack of ability to replace the battery seems to suggest otherwise.
>There is no magic solution here.
Replaceable battery with a message indicating when battery health is low enough it needs to be replaced seems close enough to a magic fix.
And even if they did make the batteries user replaceable, that is of pretty questionable value for the consumer. First, a lot of people are going to buy $5 replacement batteries on Ali Express and their phone is going to get bricked or catch fire. Related to that, most people are unaware of how dangerous handling loose lithium batteries can be.
Second, it makes the phones much more vulnerable to liquid damage, as well as much physically larger.
For sure, I would love it if my phone had replaceable batteries. I carry a couple 18650s and 16340s in my backpack for my flashlights. But there are a ton of downsides to having them, particularly in a smartphone.