You can see who downvoted a post or a comment. How does this translate to other fediverse instances, such as Mastodon?

I'm quite new to the fediverse, and noticed that on kbin you can actually see who downvoted a post or a a comment (and not only your own posts and comments), by clicking on the "activity" button.

My question is, how does this translate to Mastadon? I haven't seen a "reduce" button and was wondering if it is the same as "block" or "mute" on Mastodon?