Re: There's no chip shortage!
The automotive industry forecasts their requirements months ahead and orders appropriately.
When the pandemic hit, they re-assessed their forecasts and reduced the forward requirements for parts (chips included). This is actually the automotive industry telling their suppliers (who actually make the electronics) of the new forecast.
Those subs do not want to sit on lots of electronics and so they would have changed their forecasts to their suppliers.
It turned out the forecasts were wrong, but in the meantime the big fabs replaced the (now unnecessary at the time) devices with lower forecast shipping with other devices for other companies. A fab has to operate 24/7 to be really profitable so that is hardly surprising. I can imagine they went to their big customers saying something like "We have capacity to fabricate <some millions> of <your device> if you want to take the opportunity".
As those parts they are now making are probably contractually required at certain dates the automotive industry must now wait until a fab has spare capacity.
There is nothing special about the vast majority of parts used in automotive, incidentally. The only parts that require any special qualification are those in the engine bay, for the most part.
The parts are often a standard part (might be pre-programmed for them, highly likely) that has a cryptic part number unique to the automotive supplier but in reality a lot of it just standard microcontrollers, memory and other devices.
A bit of an own goal, but a warning that supply chains can bite you very hard, very easily.
Changing fabs is a bit of a problem for a lot of devices; TI bought Unitrode in 1999 and agreed to continue using the existing fab for 10 years. After that, they closed the fab and moved production to a more modern fab.
A part that was in a power supply for a particular head up display from the new batches simply did not work after that. The process was different enough that the part had subtly different characteristics.