Indeed. Activity pub includes favourites and boosts.
Lemmy uses favourites as an upvote. Kbin does too, but kbin also allows boots and it considers that a boost (which is like a retweet) is a more significant endorsement so sorting and reputation is based more on boosts than on upvotes.
I think a boost is referring to the Mastodon kind, so basically a retweet
Indeed. Activity pub includes favourites and boosts.
Lemmy uses favourites as an upvote. Kbin does too, but kbin also allows boots and it considers that a boost (which is like a retweet) is a more significant endorsement so sorting and reputation is based more on boosts than on upvotes.