Absolutely. Recently lots of Russian assets got nationalized in Germany on account of German national security in light of the energy crisis and the war with Ukraine. In NL we nationalized a bank (SNS bank) that failed, and one that would have failed (ABN). In Japan, in the wake of the Fukushima disaster there was an energy company nationalized. The USA (though they don't like to call it that) nationalized a bunch of stuff in the wake of the financial crisis.

Not sure that is a reasonable answer. War time measures, financial crises and earthquakes are exceptional circumstances.

Where has a government gone, woops, that privatisation was a bad idea, let’s buy back our national infra and burn the shareholders.

I don't subscribe to goalpost moving.