powershell – How to check permissions per specific user for all sites in SharePoint Online

How can I check (create csv report) all permissions per specific user for ALL SharePoint site collection on SharePoint Online tenant?

Is there PowerShell script for that as I’m not aware of a report in SP Online admin centre..

I see there are scripts for SP2010/13 and I used before ControlPoint (Metalogix) to do so, but cannot find anything for SharePoint Online.

Your help is much appreciated!
Thanks!