Riot/iOS is already native, and works pretty well, so will likely evolve to behave more like RiotX as time goes on rather than getting rewritten. RiotX is tryi

Riot/iOS is already native, and works pretty well, so will likely evolve to behave more like RiotX as time goes on rather than getting rewritten. RiotX is trying to be something that starts off feeling like WhatsApp or Telegram, but can expand into IRC/Discord/Slack for powerusers. Who knows if it'll work. For native desktop apps, there are a bunch of other Matrix clients focused specifically on that domain - e.g. https://neilalexander.dev/seaglass https://neilalexander.dev/seaglass and https://wiki.gnome.org/Apps/Fractal https://wiki.gnome.org/Apps/Fractal and https://github.com/Nheko-Reborn/nheko https://github.com/Nheko-Reborn/nheko and https://github.com/QMatrixClient/Quaternion https://github.com/QMatrixClient/Quaternion. Riot/iOS might expand into Riot/macOS though in future (although this is basically what Seaglass is already).