A: Very few. Internet Archive offers classic, public domain films in MKV. YouTube allows downloads of some Creative Commons content. For new, "hot" movies, you will have to pay or watch with ads on platforms like Tubi or MX Player (which is streaming, not downloading MKV).
: It allows you to switch between languages (e.g., Hindi and English) without needing separate files. 123mkvcom mkv hot
This technical superiority is why users gravitate toward "MKV hot" releases. They want the cinema experience at home, and MKV delivers. A: Very few