Does anyone else resonate?
I would bet that many companies would like to sell an AI solution, sweeping the PR review and approval process under the rug so we can pretend something useful happened.
I review almost all PRs for my team (all but my own). Sometimes I think I have other tasks I would prefer working on, but reviewing PRs lets me see what other programmers did and discuss alternate solutions, or learn from their work. I think of it as an important part of my job, one of the reasons I get called Senior.