Does severance delay my unemployment claim? after 17 years as a pharmacy technician

I was offered severance of 17 weeks after being let go as a pharmacy technician and I am unsure how it affects benefits. There are 17 people counting on me, so I am trying to be careful. I have a mortgage and need to plan. Did you file straight away?

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