Need help with filing on the State level - Remote Work in AR for a employer based in IL

I lived in AR for the entirety of 2021 working remotely. My employer is based in IL, and IL collected the state income tax for 2021. Would I be filing a resident state return for AR, and a non-resident return for IL, or a different combination?

 

For reference, in the year 2020, I lived in IL and worked on-site for the same employer for a few months. Then, I moved to AR and continued working remotely. For 2020 tax year, I filed two state tax returns, one resident version for AR, and a non-resident for IL. 

 

What should I be doing for 2021?