If you want to run your company using vetted software and limit your developers to only use a small list of approved software. You can do that. I've worked in such environments. You can lock down the corporate firewall. The point is choice.
It's completely different if you basically want a regulatory agency which will decide what software people are allowed to build.
Outside of work I like to use niche Linux distros. If I accidentally wipe my vacation photos during the install process, that's a risk I took. I don't have a right to complain that I destroyed my own data and blame it on software largely built by volunteers.
However I don't disagree completely. If you want to build a hardened fork of Linux with software vetted by your private certifying authority, that could be a good market. If all engineers working on your custom fork need to be "licensed" by a privately run organization, that is also fine.
I just wouldn't want the State to do this.
I’d argue no.
Let the private sector regulate this. If you want to use an extremely locked down OS with a small handful of apps, go right ahead.
The State has no role in this.
I guess if you can prove negligence you can sue.