This is more difficult than you think at Apple, since the company provides many engineers with phones for company use that most people just use personally.
I landed my first gig at a large bay area software company and it's been great. Maybe I'm still green - but i've never experienced a company that treat it's employees so well in compensation and benefits. Never. including a somewhat large european software company i worked for. I'm sure once you dig in somewhere, there's stuff from a labor perspective to complain about but i just don't see it.
But no matter the company, including this one, I've always rejected company phones and pushed to use my own. Wanna give me a stipend? Ok.
Want me to install Microsoft InTune to give you admin control over the MS app on my phone (office/teams/outlook)? Ok. That's fine
Wants a policy of me locking my phone upon installation of some apps? Ok.
But you don't get to control my whole phone. Period. And I don't get the people who allow this line to be crossed.
Besides, one day 5 or 10 years from now i might want to look for another job - should i be using company property to do this? Should i when i inevitably look up stuff in my private life that might violate company policy? Be it political stuff or adult entertainment?