This has to be hyperbole. I built (with Claude) a P2P LAN voice-only chat app in Rust recently, using native frameworks for each platform (Swift, GTK, Win32), and it weighs in at about 5-6 MB depending on the platform. I have spent an enormous amount of time looking for places to squeeze it further. It has ephemeral channels and password protection, but that’s about it: no text chat, no video, no friends, no blocklists, no concept of servers, etc. I can’t imagine everything else Discord has squeezes into another 5 MB.