In most places I've worked, if you were allowed to use Linux as your desktop OS at all; you were on your own and completely unsupported by IT, whether you needed it or nor.
Same here. They were clueless and I loved it. They weren't all up in my box all the time and I got my work done despite their "best practices." One time, they even sent out a flunkie to check out why my IP address was refusing when they pushed Windows updates. I had a good belly laugh over that one.