The majority of chips are made on much older and/or more specialized process nodes, and those capacities won’t be expanded any time soon, if at all. Things like protection devices, discrete transistors, op amps, and power regulators are built on larger nodes like 130nm and 250nm. Most automotive controller ICs are also built on 90nm or larger nodes too. Those nodes are still absolutely crushed right now and will be for at least another year. It’s slowly getting better, but the market is still crazy tight.