https://support.google.com/a/answer/6129577?hl=en#:~:text=Create%20and%20assign%20the%20role&text=Click%20Assign%20role.,organizational%20unit%20and%20click%20Done.

Tip for large organizations: Select the Scheduled Release track for your production account. Then set up Rapid Release on a test account to try new features before they're available to your users. https://support.google.com/a/answer/172177

https://support.google.com/a/answer/9262032?hl=en#zippy=%2Cdefine-access-levelsbasic-mode:~:text=This%20example%20shows%20an%20access%20level%20called%20%E2%80%9Ccorp_access.%E2%80%9D%20If%20%E2%80%9Ccorp_access%E2%80%9D%20is%20applied%20to%20Gmail%2C%20users%20can%20access%20Gmail%20only%20from%20an%20encrypted%20and%20company%2Downed%20device%2C%20and%20only%20from%20the%20US%20or%20Canada.

The best way to export the data with the least amount of effort is to use the Data Export tool in the Google Workspace Admin console. The Data Export tool allows you to export all, or some, of your organization's data to a Google Cloud Storage archive and download it1. You can use filters to export data from specific organizational units, groups, or users2. However, since you have more than 1,000 users in your organization, you need to contact Google Workspace support before you use the Data Export tool.