FIFA says CONMEBOL will make their World Cup Qualifying schedule in four days. https://www.youtube.com/user/FIFATV/ will show it. It will be in Luque, Paraguay at 10:00 local and 14:00 CET.
https://en.wikipedia.org/wiki/2022_FIFA_World_Cup_qualification_(CONMEBOL) has the schedule. The Brazil vs. Argentina games will be in Brazil on Matchday 6 on 13 October 2020 and in Argentina on Matchday 14 on 7 September 2021. For whatever comes down to the last matchday on 18 November 2021, it will have Peru vs. Paraguay, Venezuela vs. Colombia, Bolivia vs. Brazil, Chile vs. Uruguay, and Ecuador vs. Argentina.