Which hype? Matrix as a protocol is used for a decade now, especially by various big governments (French, Luxembourg and German governmental messenger, various German states, German and Polish armed forces, German healthcare messenger, various smaller projects in Latin America), is bridgeable (I currently have it bridged to Whatsapp and Signal amongst others) but I really don’t see a hype - on the contrary I only see people predicting me the immediate apocalypse of Matrix for 5 years now, currently due to matrix.org (one of a hundred instances) introducing a premium account model for the most cost intensive (heavily media sharing)users. (See below for that).