Since today, Ordinance 26 november 2021 is abrogated (through the attached Ordinance 14 January 2022).
From South Africa, Lesotho, Botswana, Zimbabwe, Malawi, Mozambique, Namibia, Eswatini, applicable rules are those relative to States included in list E of DPCR 2 March 2020, i.e. https://www.viaggiaresicuri.it/approfondimenti-insights/saluteinviaggio