Use Picture in Picture to watch video on Telegram while using other apps on your smartphone. Here’s how.
Telegram recently added a Picture in Picture ode for its Android and iPhone apps. This option can came in handy for multitasking, if you want and can watch a video while doing something else on your phone.
When watching a video you received or found on a Telegram channel, use the Picture in Picture to enable this mode. This button is located on the upper right corner of the video player.

With Picture in Picture mode on, you can use your smartphone any way you want. You can minimise Telegram, open other apps, send e-mail etc.
The small Picture in Picture window can be moved and resized.
When you want exit Picture in Picture mode, just tap the X button.