According to WABetaInfo, the option is being tested in Argentina for a small number of users. In the stable build of WhatsApp, users can only share media files up to 100MB in size for now. Therefore, the expansion to 2 GB looks significant. It is worth noting that Telegram has been allowing users to share files up to 2 GB since 2020.
Earlier it became known that WhatsApp adds reactions to messages. This option also appeared in Telegram a long time ago.