[pixelbath]

> it is an issue, and a waste for people to maintain multiple iCloud accounts, purchase multiple machines, and have notes and other materials scattered across machines and accounts

It is an issue, and security concern, for employees of an organization to risk adding corporate devices to their personal accounts, and vice versa. Why would you want your personal stuff on a machine you don't own?

I use my work email for my work AppleID, and use that to sign into my work-provided devices. Never the twain shall meet. In addition, we have a Developer account, which would even further muddy the waters if I start mucking around with personal stuff (certificates, provisioning profiles, etc.).

> an admin could view some contents of your iCloud account

Yeah; that's why you don't give them access to it. I also don't use Outlook and Teams on my personal phone. Work gets to contact me on my work devices.

> two subscriptions for Music for example. And different ids you are contactable at

No? Just don't buy a second Music subscription. Also, you have a work and personal email; are those multiple points of contact also an issue for your coworkers/family?

[eek2121]

Apple supports app specific sign-ins. That is what I do.