Tbh, I have given up all hope in the mobile sector. Even Purism or the Fairphone are far from convincing, they are just slight modifications of an essentially deadlocked concept, as you say.
We either need revolutionary new devices (or even device categories), re-use our existing stuff for as long as possible (which I'm okay with, it's at least eco-friendly) or give up using phones until something spectacular happens. 😕
I just hope mobile phones never become 100% mandatory 🤞