In regards to jobs and job losses I have no idea how this is going to impact individual salaries over time in different positions, but I honestly doubt its going to do much. Language models are still pretty bad at working with large projects in a clean and effective way. Maybe that will get better, but I think this generational breakthrough of technology is slowing down a lot.
Even if they do get better, they still need direction and validation. Both of which still require some understanding of what is going on (even vibe coding works better with a skilled engineer).
I suspect there is going to be more "programmers" in the world as a result, but most of them will be producing small boutique single webpage tools and designs that are higher quality than "made by my cousin's kid" that a lot of small businesses have now. Companies > ~30 people with software engineers on staff seem to be using it as a performance enhancer rather than a work replacement tool.
There will always be shitty managers and short-sighted executives that are looking to replace their human staff with some tool, and there will be layoffs but I don't think the overall pool of jobs is going to reduce. For the same reason I don't think there is going to be significant pay adjustments but a dramatic increase in the long-tail of cheap projects that don't make much money on their own.