DevOps is sysadmins making unreliable continuous integration/delivery/deployment tools out of bash scripts, YAML files, and webhooks, which are in some ways inferior to things Heroku did 10 years ago.
That might be a reason why Vercel, Netlify, Render and others are picking up usage. YC has been investing in several similar companies. Big cloud is going in the same direction with AWS Amplify/App Runner, GCP Firebase/Cloud Run and Azure.