
Explanation:

Box 1: Hosted macOS
HostedmacOS pool (Azure Pipelines only): Enables you to build and release on macOS without having to configure a self-hosted macOS agent. This option affects where your data is stored.
Box 2: Hosted
Hosted pool (Azure Pipelines only): The Hosted pool is the built-in pool that is a collection of Microsoft- hosted agents.
References:https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/v2-osx