My employer failed to update my address when I moved in 2021 from MD to DC, and withheld MD state income tax in 2022 instead of DC. How do I request a refund in MD?

I appreciate input from others with a similar experience - I lived and worked in DC throughout the entirety of 2022, and my employer failed to incorporate the address change I sent at the end of 2021. I obviously owe DC taxes, and need to figure out how best to file with Maryland as a nonresident to get the entirety of what was deducted to me in 2022 refunded. Thanks for any insights!