I'm not looking for free as in beer, I am looking to not share data that conveniently uniquely identifies the private me to random foreign 3rd parties like Appl

I'm not looking for free as in beer, I am looking to not share data that conveniently uniquely identifies the private me to random foreign 3rd parties like Apple just to do my job. Buying media via cash+reimburse or through company ordering is not my money and is often the solution for using commercial OSes with personal privacy outside my employer remaining similar to the unbanked. (But I can't tell if that is a waste of time with Apple, since I obviously need follow whatever procedures for security updates until the next purchasable media.) From other comments, it sounds like I can dance around to make it possible on OsX, but every other OS (except ebooks?) that I have ever installed either makes opt out a transparent (though smaller button/font) process or has no registration process at all. I don't like that the machine will be in a very small group of opt-out OsX systems compared to reasonable percentages of other Oses. By not sharing my personal details, I might be risking my coworkers having lower than normal privacy when using OsX machines.