How are they monitoring and controlling my device when they don't have MDM access to it? Again, I created the work profile myself. All my company IT could have access to are the Microsoft apps I've installed in the work profile which is separated & turned off when I don't need it.

If I have a second phone, I need to keep it charged, remember to take it with me, and to turn it off after work. With everything integrated into my private phone it's much easier for me.