For those who have a test iOS device, what Apple account do you put on it? How do you set it up?

Set it up like your main one but turning off all notifications and syncing stuff?

@mikaelacaron don’t use your main AppleID that has your personal data on it, since it might migrate that data in a way that makes it inaccessible to your everyday devices. Use a separate AppleID used just for testing.
@bobdel gotcha! Thanks! That seems to be what most do, but I wasn’t sure what would be the best way