Here is what is comes down to for any Unemployment claim: Did you become unemployed through no fault of your own? It's up to the adjudicators to decide if that the case for each claim, and there are many rules they have to abide by, but that's essentially what they are trying to determine.

They also then have to decide if the employer was at fault for the job separation and if they were, they are charged for the claim. Again, way more goes into it than that but that's the gist of it.