If that were true there wouldn’t be so many layoffs in the industry.

Sure there is still some residual need for new software or modifying existing software. But it’s far less than it was say 30 years ago.

I suspect the layoffs are for financial reasons, not because software is "done".

It still takes incredible amounts of resources just to build and operate even modest piles of spaghetti. The industry is basically just layers of duct tape being applied all the time to hold things together. The average user can barely operate a computer. There's no consensus for handling identity or distributed computing. We still have a long way to go.