While it has not yet been enforced, my employer has an MDM. Because I do not want to violate this policy or install something that gives my employer access to my device, I do not use my personal device for work and I do not have a work device other than my laptop.
This has given me some interesting perspectives.
I do not need to be connected at all times.
I can walk away.
They pay me for work hours, not for my free time.
I can easily disconnect every night and weekend, even emergencies in my area can wait.
Seems people think things are much more urgent than they should be or actually are.