"Virus" kinda refers more to the phenomenon of the species as a whole (kinda like how "humanity" refers to all of us, plus people who came before, plus all the stuff associated with us). Likewise "COVID-19" refers to the pandemic, rather than the viral species.
Meanwhile "virion" is the term to refer to the virus particles, so I suppose the most precise/pedantic way to say it would be "all SARS-CoV-2 Virions"?