I liked your brief explanation, by the way, the comments you have left also explain well what DevOps is, although I also want to complete the explanation with something, DevOps today as explained in this article https://alty.co/services/devops-banking is also being used a lot for banking, I could explain it to you but it is too much text and a lot of information to summarize it for you, I prefer that you read that article where it explains and details very well everything that DevOps is and how it is widely used today in banking