do you get a w-2 or 1099-nec/misc?
if a w-2 file form MI-W4 with your employer. this should prevent MI withholding and since MI has reciprocity with Il none of your wages would be taxes by Michigan nor if you avoid withholding would there be a need to file a MI return.
https://www.michigan.gov/-/media/Project/Websites/taxes/Forms/MIW4.pdf?rev=3b636449ec174962a3afe0a39...
unsure if you get a 1099, but as self-employed you may be liable for MI taxes for income earned while living or working there.
