Powerplants, power distribution and other industrial tasks outside of IT don't require latest-generation parts. There are dozens of fabs in many countries that

Powerplants, power distribution and other industrial tasks outside of IT don't require latest-generation parts. There are dozens of fabs in many countries that make ICs on older nodes for these applications. Cheap, proven and quite ubiquitous. Anyways, anything safety-critical would likely require re-certification when ported to newer hardware. Edit: just realized that also supply of these ICs stalled. Right now, it's hard to see whether this supply shortages are just due to temporarily increased demand or not. If the latter is the case, it is still easier and cheaper to set up fabs for older nodes.