You can go and buy sodium batteries already. They’re not competitive with Lithium ion batteries in many mobile applications, but very much competitive for everything where price is more important than size or weight.
Lithium has decades of research and industrial scaling behind it, it’s hard to break into that. But especially sodium is on a pretty good path to replace it in large scale storage applications.
Repairability doesn’t really matter if you only get two years of software updates.
Yes, there’s lineage OS, but whether their support will be better, is doubtful.
We shouldn’t support a company that openly says they don’t give a crap about their users’safety.