It did work. The technology was lost alongside the USSR (yes, it is possible to lose technology). Rosatom is currently fiddling with floating reactors, in the format of a cargo boat
Not just there. Think about every town and city in the global south suffering from water shortages, electricity shortages. You could power water desalination plants with these. Heck, if you have a small, modular reactor (small enough to be put onto a tracked chassis), you could just make them stationary and have a lot of them. The potential is immense
Doesn't even have to be atrocities. Try policies. Privatisation of healthcare? Decaying and propagandization of school education? Crumbling infrastructure? The list goes on
What actually offends them about places like China is that it’s their ideology that’s being suppressed there
Is it even suppressed in China? There seems to be plenty of libs in China, even outside of Hong Kong and Taiwan. Liberalism just isn't the government's official ideology in China. That's about it
For the reactor itself? The link is in the post. For the floating one? I can offer wikifedia