[LeFantome]

> the whole RISC-V thing will remain a tiny niche

I think this is going to embarrassingly wrong.

> all of the SW that is native to the platform

There are several RISC-V Linux distros where essentially all the software available for the x86-64 platform is also available on the RISC-V edition. Let’s use Ubuntu as an example.

> when a vendor loses interest in the platform > the platform goes to rot immediately

Ubuntu will provide updates for 15 years. That does not seem very immediate.

For RVA23 hardware, I expect even new Ubuntu releases to support it up to around 2030 at least. 15 years from then will be 2045. I cannot say that I am picking up what you are laying down here.