Just some random thoughts with subjective opinions:

  - Too much whitespace in my opinion.

  - Rows instead of columns feel a bit alien and are uncomfortable to use.

  - Missing tooltips (E.g. the buttons with the arrows: Are this upvote/downvote buttons or buttons to change the order of the sections, this is not clear without clicking)

  - Doesn't have a automatic dark mode (Well, it's a beta product, so I wouldn't expect it)

  - Some images look wrong (Firefox 94, Fedora): https://imgur.com/a/bKdTYPj

The news selections is at least for events in germany not that good: A lot of at least for me unknown newspapers, no Spiegel, Zeit, Süddeutsche, ... (Searchterm: "3g bayern")