Personally, I love the UI/UX of it and how customizable it is. For me, it's unparalleled, and I'm happy to pay for it to support the independent developer behind it. But I get that not everyone cares about it and would rather use a different option, and it's cool that there are so many different options to interact with the fediverse.
It's also just one dude. I'm very okay with supporting this one dude who makes what I think is the best app for this purpose, cuz I want him to keep doing it and to be able to do it full-time!
Still available! You can find them at: Settings->Post options->Swipe actions
Personally I keep upvote/downvote as the first two swipe actions, third as the save post.
Edit: pro-tip I just found after seeing someone else do it: long press on a setting in sync will copy a link to that setting. And you can paste it in a comment as such:
You're contributing too! Memes, posts, comments, are all vital for Lemmy. Without it there is no community to interact with via the instances/apps.