Earlier quoted context omitted.
As a European, this seems normal? When someone is fired, they generally stop working immediately while getting paid through the notice period.
In the US there is no notice period. In every state (with the exception of Montana), employees are "At Will" only. There is no notice period, or severance pay required by law. Health insurance goes with your job, too, as do any other benefits (something called COBRA lets you pay to continue your health insurance coverage for a few months with the expectation you'll have found a new job and/or coverage) In the US, one…
Many states copied the statute.
There are some exceptions, like a company going out of business or natural disasters, but those don't apply here.