Severance and unemployment, do they overlap? after 15 years as a customer-service rep

I signed a severance agreement and I am worried about how to report it. It has been a long 18 weeks. I have a mortgage and need to plan.

I filed on day one anyway and reported the severance honestly. The agency decided what to do about the timing.

Some states only count certain kinds of severance. A local workforce centre could tell me which.