I don't think Leaf has managed to perform the additions yet number here is still 740 something https://itch.io/b/520/bundle-for-racial-justice-and-equality), and he is planning to add only paid games, with free games in a collection to show who has offered support: https://twitter.com/moonscript/status/1269715947599704064
Note from a later tweet:
"If you have a PWYW $0 min price game then I'd be glad to hear you out if you think it makes sense for your game to be directly part of the purchasable part of the bundle. I don't want to exclude those sell their work in alternative ways."