You will be able to go to a Genius bar and get your support. If that's what you are after, the answer should be yes. But I would advise against it. You will move from one gated garden to another. You are right, breaking out from Google is very hard and painful, but I would argue breaking out of Apple might be even harder.
A while ago I started having the same worry about Google and started to cut them out. I began with email and moved to FastMail with my own domain, then I moved my drive and Photos (currently on DropBox) and then all other things (Apps/contacts/calendars)
Admittedly, it's more expensive, but each component is now separate and if something goes wrong I don't risk losing everything in one go.
A while ago I started having the same worry about Google and started to cut them out. I began with email and moved to FastMail with my own domain, then I moved my drive and Photos (currently on DropBox) and then all other things (Apps/contacts/calendars)
Admittedly, it's more expensive, but each component is now separate and if something goes wrong I don't risk losing everything in one go.