Okay, disclaimer this is just a "not even 5 minutes in" type of thing at this point, but I wanted to start the complaining about a few things already. ;)
Also, I use it without an account at this point. I don't know if that affects any of the app features right now, besides the obvious ones to communicate & vote of course.

• Compact mode thumbnails are microscopic in size. Thumbnail size is already a sore spot for me because most Reddit & Lemmy apps are also pretty bad in that regard (likely focusing more on the big cards, dunno), but this is by far the worst example I've seen. It's especially sad considering that the desktop kbin page is the polar opposite to this. In compact mode it actually fills the entire space out that is available to it.

• Thumbnails also cannot be swapped to the left side.

• I love that there's an option to have all comments collapsed. However, I'd like it if I manually collapse a comment again (if we talk about the top level one), that it does not collapse the entire thing, including the content, but goes back to its previous state. I assume this might've been a case of "afterwards it is already read so we don't need it" design choice, but I'd like to see an option where collapsing comments manually doesn't do that.

• The "swipe left to go back" option does not seem to do anything, or I am misunderstanding how it is supposed to work?

• After scrolling for even just a little bit the app starts to slow down significantly.

• The Android icon could be improved instead of just being a small square in a circle (I believe that's like the stock default icon settings on the newer Android versions).