Outside of the mega-fang industry, I’m wondering the same thing.
The Great Resignation had to have taken a huge toll on regular enterprises. There are probably going to be some unlucky (or lucky, depending on how hardcore they are) people in the position of maintaining aging legacy systems and retrofitting them into the future.
COBOL, for example, is becoming a lucrative language for people in the financial and insurance industries. Legacy Java is all over the place, I’m sure. Legacy .NET is in the middle of a huge industry retrofit, (.NET 5 was the official post-legacy rebrand and they’re on to .NET 6+ now).