Comment 2 for bug 1829269

Thank you for taking the time to report this bug and helping to make Ubuntu better.

This does seem odd, on my Ubuntu system Telegram launches immediately.

Could you paste (or pastebin) the output of the following commands?

$ apt policy bubblewrap flatpak
$ flatpak run -vv org.telegram.desktop

And also in the last command indicate exactly where it gets stuck ?