That's not correct. Frecciarossa is just a brand name of Trenitalia for their high speed long distance services. All part of the same public company, not a separate operator. Details here: https://www.seat61.com/trains-and-routes/frecciarossa.htm
That article is headed "04 MAR 2022 | 04:43 PM UTC" There's a clue part way down when it starts talking about covid 19 social distancing measures being enforced in demos.