It’s bad at link previews. For example, if someone sends a YouTube link you won’t get a preview thumbnail of the YouTube video. This is weird, because I’m sure this worked before (although not every time). I think this should be basic functionality in modern messaging apps.
Terrible photo quality, especially from Android devices. I noted that the image quality of photos from Android users were significantly worse. Like, you can visibly see all the terrible jpeg artifacts. Haven’t seen this to the same extent on other messaging apps.