Severance and unemployment, do they overlap? - what worked for you?

I was offered severance of 14 weeks after being let go as a barista and I am unsure how it affects benefits. There are 14 people counting on me, so I am trying to be careful. I have a mortgage and need to plan. Who should I ask before signing?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.

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