Telegram is a cloud-based mobile and desktop messaging app with a
focus on security and speed.

NOTE: 
In order to use Instant View, you need to have webkit2gtk4.1 installed

If you are using NVidia proprietary driver and having issue with
Instant View feature, add this into /etc/profile:
export WEBKIT_DISABLE_DMABUF_RENDERER="1"
and reboot your machine.