It's probably safe to assume that tapping the "Like" button will still like it, and you have to long-press to get reactions (since that's what the video seemed

It's probably safe to assume that tapping the "Like" button will still like it, and you have to long-press to get reactions (since that's what the video seemed to show). On desktop, it's less clear what the appropriate interaction metaphor is; maybe hover shows you the other options, but clicking still just Likes it?