I've been meaning to migrate but am more than a little leery of the potential for gotchas and disruption. Any advice from those who have gone through this already?
I understand you just lose all your Google Play purchases and need to re-purchase any apps or subscriptions you want to keep. I'm assuming this will basically require an Android phone factory reset and to be setup fresh with a "new" Google account for the old email address? Is this the case?
I also understand the need to do a Google Takeout and download everything. Already got bit by this once though when I recently did a Takeout to backup all my Google Photos content: a week or so later, after I had already permanently deleted the originals, I received an email from Google saying "sorry there was a bug in Takeout and some of your large videos were omitted from your exported data". I guess you need to comb through and verify everything actually made it to the Takeout to be safe.
When you migrate an email address off of Google Apps for Your Domain to another email host or self-host, what happens to the Google Account for that email address? Is it possible to shut down the Google Apps for Your Domain service for the domain in question and then establish a new fresh Google account for the same email address (not a gmail address) that was formerly part of the Google Apps for Your Domain service?