Is Staff a Singular?

In english, we don't really mind if you treat it as a singular or a plural. Staff is a very important word. You could say the berlin philamonic orchestra is world famous - depending on whether you're thinking of them as an individual person and/or whole entity. The public are patiently following the pandemic safety guide lines at christmas time. Or the public are patiently follow the pandemics o, public. More collective singulars are jury, club, class, organizations like the b b c in spain.