I feel bad for the seniors who have to take on this workload. The general pattern I am seeing is that seniors at "AI-first" companies are being held back from doing their work by reviewing junior PRs, who are now able to ship much more code they don't understand the badness of.

Mentoring Juniors is an important part of the job and crucial service to the industry, but juniors equipped with LLMs make the deal a bit more sour. Anecdotally, they don't really remember the feedback as well, because they weren't involved in writing the code. Its burnout-inducing to see your hard work and feedback go in one ear and out another.

I personally know people looking to jump ship because they waste too much time at their current employer on this.