This is interesting to me because my company is right in the middle of the serverless movement. I know and work with over a dozen large companies that have moved their fairly standard micoservice-oriented architecture over to 100% serverless. Lots of people in the ops world still think this is some kind of marketing nonsense or black magic though.

Long story short, when engineering teams move to serverless, they get huge scalability benefits and essentially "squashing their stack" making team engineering velocity way faster than when they were using EC2/Kubernetes/VMs.

Imagine 10 years ago, being a LAMP stack developer. One day, you find a hosting platform lat allows you to be a much more fast/effective LAMP developer while only needing to work with M+P. This is the core benefit of serverless.

Yes, there are servers under the hood somewhere at an AWS datacenter. Yes, infrastructure still gets patched, updated, etc. Serverless is all about letting engineering team focus on building the application and making the infrastructure "not my problem".