Yes, text, media, links, and agents. It's not a news reader but a news 'linker'. User reads news articles at their website using the browser with links on bside sidebar. Not just news articles obviously. With link support, RSS chats can be attached like a sticker or poster to any web page on the web.
bside uses Chrome built-in AI to summarize as part of client-side workflow. frontend does most of the heavy lifting. backend is lean and cheap enough to scale massively.