Just downloaded the new app for Android (I feel like I came home after a long and tiring trip). And I like to read a thing then swipe the card to hide it. My only issue is when I close the app and come back in, the stuff I hid is visible again.
I'm guessing it's because lemmy afaik doesn't actually have any support for post hiding, so Sync is just putting it off to one side out of view, but then that's not saved for when you reload the app. Hopefully we can get proper post hiding (or at least a workaround) soon, I browse the same way you do