Google Domains describes their view of the domain transfer process, in Google Domains Help: Transfer a domain out . The transfer process supports different transfers. From a person with an account at one registrar, to another account at that same registrar. From a person with an account at one registrar, to an account at a different registrar. From one person, to a different person, at that same registrar. From one person, to a different person, at a different registrar. As a project, I found it best to define, size, and assign the complete transfer process in 6 tasks. The project can be adjusted for a domain served by any sending registrar - and targeting any receiving registrar - based upon formalities required by each registrar.
What Blogger won't tell you