How can you monitor increases in user reported Spam as identified by Google?

In the years prior to your organization moving to Google Workspace, it was relatively common practice for users to create consumer Google accounts with their corporate email address (for example, to monitor Analytics, manage AdSense, and collaborate in Docs with other partners who were on Google Workspace.) You were able to address active employees' use of consumer accounts during the rollout, and you are now concerned about blocking former employees who could potentially still have access to those services even though they don't have access to their corporate email account.
What should you do?

Your organization is expected to start using Google Workspace Enterprise Standard in several countries. During the planning phase, the change management leadership team mandates that meeting rooms near each participant's office location should be suggested when someone creates a Google Calendar event, to simplify the user experience and avoid booking rooms when people would not be able to move easily. What should you do?

Your company is in the process of deploying Google Drive Enterprise for your sales organization. You have discovered that there are many unmanaged accounts across your domain. Your security team wants to manage these accounts moving forward.
What should you do?

Your client is a 5,000-employee company with a high turn-over rate that requires them to add and suspend user accounts. When new employees are onboarded, a user object is created in Active Directory. They have determined that manually creating the users in Google Workspace Admin Panel is time-consuming and prone to error. You need to work with the client to identify a method of creating new users that will reduce time and error.
What should you do?