A collection of anecdotal evidence and a nearly in-explainable increase in "trivial" software middle-ware tasks that had been dormant until GPT arrived.
Now that the means, motive, and opportunity are there, combined with the a general uneasiness regarding employment opportunities, gains have definitely been on a sharp uptick.
Whether that's a first-order effect of people using generative models or a second-order effect of people believing they will be replaced by those who do; either way, the pressure is real, and the gains are material.
It may take a larger timespan and more samples, but I have little doubt middleware and other glueware is being rapidly "no-coded" by GPT models on the private computers of contractors.
You either let a robot tell you how to do your job better, or someone else will.