It is official that the Telegram X has more features than the official Telegram app and it is cleared by the Official Telegram LLC. The best part of the Telegram X is that the Video Pop Out feature and recently I have tried installing Telegram X on PC and yes, it's working pretty fine for me. Sincere thanks to the developer and yeah, looking forward to more awesome features.
Progressive web apps. They act like locally installed apps and have the same system features like notifications. Just go to web.telegram.com on your chrome browser and sign up then add shortcut to homescreen.