Comment # 1 on bug 1176626 from Giuseppe Stoduto

The same error occurs with the original program taken from the official website
https://desktop.telegram.org/
If it starts from the terminal without any parameters it shows me this:

Telegram�������./Telegram
Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use
QT_QPA_PLATFORM=wayland to run on Wayland anyway.
Gtk-Message: 20:57:52.510: Failed to load module "unity-gtk-module"
Gtk-Message: 20:57:52.515: Failed to load module "unity-gtk-module"
Telegram-Message: 20:57:52.523: You can disable tray icon counter with
TDESKTOP_DISABLE_TRAY_COUNTER and make it look better if it is monochrome.
error: : cannot open
error: : cannot open
error: : cannot open
The X11 connection broke (error 2). Did the X11 server die?

to start the program you have to use the following command:

Telegram�������QT_QPA_PLATFORM=wayland-egl ./Telegram 

showing this:

Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use
QT_QPA_PLATFORM=wayland to run on Wayland anyway.
Using Wayland-EGL
Telegram-Message: 21:01:39.534: You can disable tray icon counter with
TDESKTOP_DISABLE_TRAY_COUNTER and make it look better if it is monochrome.
error: : cannot open
error: : cannot open
error: : cannot open
Using the 'xdg-shell' shell integration

but in this case the copy and paste doesn't work showing me these errors:

qt.qpa.wayland: Non-toplevel surfaces can't request window states
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: setGrabPopup called with a parent,
QtWaylandClient::QWaylandXdgSurface(0x966c710) which does not match the current
topmost grabbing popup, QtWaylandClient::QWaylandXdgSurface(0x9305f90)
According to the xdg-shell protocol, this is not allowed. The wayland QPA
plugin is currently handling it by setting the parent to the topmost grabbing
popup. Note, however, that this may cause positioning errors and popups closing
unxpectedly because xdg-shell mandate that child popups close before parents