I've got the base set from 2021 Archives now in hand.
Topps has finally caught up to the trades the Cubs made in late July, so Baez, Bryant, and Rizzo don't have Cubs cards. There are nine Cubs in the set, but only four are active players.
The set uses the designs from 1957, 1962, 1973, 1983, 1991, 2001, and 2011. They also threw in a fantasy design from 2091. That seems really dumb since the set is called "Archives." Seem kinda tough to archive something from 50 years in the future.