Telegram Desktop registers a url / mime type so telegram URLS open with the app. If you use etrace to analyze the snap, you'll find a popup appears and the test hangs.
Steps to reproduce:
etrace analyze-snap telegram-desktop
Expect telegram to open.
What actually happens is a popup appears.

alan@robot:~$ etrace analyze-snap telegram-desktop
original snap size: 306.85 MiB
original compression format is lzo
content snap slot dependencies: [gtk-common-themes]
exit status 1
Telegram Desktop registers a url / mime type so telegram URLS open with the app. If you use etrace to analyze the snap, you'll find a popup appears and the test hangs.
Steps to reproduce:
etrace analyze-snap telegram-desktopExpect telegram to open.
What actually happens is a popup appears.