I’m yet to see a detailed geographic breakdown, but I think that a lot of the midterm result was likely due to the further blueing of blue states rather than successful resistance of voter suppression.
Ditto for the anti-gerrymandering bills etc. They’re all happening in Dem-controlled states.
That helps a bit with the House, but has minimal impact on Presidential elections. It doesn’t matter if California is 100% blue so long as the electoral college rules.
The GOP-controlled “purple” states are likely to see the most intense election rigging. They’ll calibrate it to whatever level they think is required.