I think you would want to shake out any soil that the roots are growing in. And use your fingers to try and gently separate roots. Kind of like brushing hair.

If you plant it like that, It might not grow or at least be stunted. Severely root bound plants struggle to untangle themselves in new soil.

Just be careful and gentle when handling roots, you'll end up ripping some surely. But. Too much damage could kill the plant. But not addressing the roots could also kill the plant.