Are you sure Apple's products teams grew? AFAIK these were quite small and I did not hear anyone talking about them growing.
Going back to Linux because Apple has no vision—I'd say this is another level of ironic.
Linux is a much much lower cost of entry - there's no grand vision expectation.
I've been an Android user since forever but I had to switch to iPhone X to dogfood my app. I "switched without switching" -- my photos are still saved to Google Photos, my contacts are synched with Google Contacts, etc.
I'm perfectly fine after the switch. All my mobile workflows are intact. When it's time to switch back to Android, I'm sure I'll be able to switch without any major problems (except for one thing -- I'll likely miss the build quality of iPhone X).
You're not paying for a future vision at all. That doesn't make any sense because they don't tell you what's coming in the future and actively try to prevent people from finding out.