There's a lot of interest in that from a national security perspective anyway.
Part of TSMC's offer is that they won't do design, they won't compete with you on design etc.
They specialize in the best possible fab and service for your design and that's it.
That's kind of a hoax. GUC (Global Uni Chip) is huge, and a nearly-wholly-owned subsidiary of TSMC.
https://en.wikipedia.org/wiki/Global_Unichip_Corporation
TSMC has a large design operation. It simply is part of a subsidiary rather than the parent company, that's all.
There are a lot of shady links between TSMC and GUC. I was once pressured to "collaborate" with GUC as an explicit condition of getting access to the then-bleeding-edge 16nm PDK. I turned it down. A competitor of mine (with whose chief engineer I am friends) had the same screws put to them.
Imagine 100x of that, and that is Samsung.
I want to be able to train NNs with a laptop that can normally last 20 hours.
If they actually want to survive long term, there are two paths as I see it:
A) Be legitimately better than AMD, this could include opening up the management engine, much higher performance chips at lower price points, or some sort of space magic utilizing their Altera acquisition.
B) Embrace RISC-V and push it to laptops and desktops HARD, while not pulling the Microsoft Embrace Extend Extinguish™ play. If they go this route then their stock becomes an exceptionally strong buy IMO.