Looker Studio Pro in a large-scale production environment

Has anyone using LSP on large scale (multiple departments, User etc). if yes could you please share how did you implement below key items or any best practice document will be helpful. we are trying to use LSP as enterprise BI and appreciate your inputs.

1) CI/ CD pipeline

2) Cache management

3) Dashboard level permission

4) Data source - Connecting to BQ service accounts

& more

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