Grant each project team access to the project _Default view in the central logging project. Grant togging viewer access to the operations team in the central logging project.

Create Identity and Access Management (IAM) roles for each project team and restrict access to the _Default log view in their individual Google Cloud project. Grant viewer access to the operations team in the central logging project.

Create log views for each project team and only show each project team their application logs. Grant the operations team access to the _AllLogs view in the central logging project.

Export logs to BigQuery tables for each project team. Grant project teams access to their tables. Grant logs writer access to the operations team in the central logging project.