Yes. And in this case it is necessary to know cause of death to even begin to speculate.
Arguably, "one could begin to speculate" the cause of the death being the vaxx and be correct about 40% of the time.
COD won’t tell you anymore.
People can anything they bloody well want on a death certficate.
We’d need to see her medical records, and if she was an unexpected unattended, the autopsy report.