On further investigation it would appear the fix is to rename the .desktop file from:
telegramdesktop.desktop
to:
telegram-desktop.desktop
this seems to fit with the standard used by other applications listed in /usr/share/applications/ and would get things working with minimal effort.
On further investigation it would appear the fix is to rename the .desktop file from:
telegramdesktop .desktop
to:
telegram- desktop. desktop
this seems to fit with the standard used by other applications listed in /usr/share/ applications/ and would get things working with minimal effort.