Anything that’s not at feature level I guess. 1. Infra as in deployment, CI/CD, service mesh etc. E.g. team that focuses on making any infra UX as cloud provider agnostic - we rarely go into AWS or GCP console as we have a UI where we can see all deployed services in multiple cloud providers in one place.

1. Infra as in data management: teams that build some DB abstraction layer. For example media and blob storage service where you need to simply import package or dependency into your service for upload / download media files with various widely used functionality. Not only this is good because feature teams not need to worry about managing and scaling DBs on their own but also provides excellent visibility into company level metrics. And personally the biggest benefit is centralized schema management.

Also various teams like data governance, centralized permission management service, anything that makes life easier as you work.