Should I be concerned if my Michigan State return had still not been accepted when I filed it on 01/21/25?

[TomK2023]

No.  If you filed the federal & state tax returns at the same time, then the state return is forwarded to the state for acceptance automatically once the federal is accepted (i.e., your Federal return must be filed & accepted first).

When the state will accept your return varies from state to state

Keep watching your email for continuing info on the status.

TurboTax FAQ: How do I track my state refund?