In terms of remote working, all that is required for approval is your manager taking responsibility for making sure you are an outstanding contributor. You are also expected to have face-to-face meetings with your colleagues at a reasonable frequency, ideally weekly, but no less than once a month.
At the risk of saying the obvious, any manager who falsely claims that someone who reports to them does an excellent job or that a particular role is essential, remote or not, will leave the company.