Comment # 1 on bug 1199323 from Bruno Friedmann

Ok after analyzing the spec file, it seems half finished.
here telegram was not working at all due to missing correct dependencies.

you need to install qt6-imageformats package and telegram will start again.
with only 2 errors lines.

for spec the changes need to be done like this

- Requires:       libqt5-qtimageformats
- Recommends:     libqt5-qtwayland
+ Requires:       qt6-imageformats
+ Recommends:     qt6-wayland

To never get trapped again I would also suggest to add a test section in the
spec to try to run the binary
/usr/bin/telegram-desktop --help

and check return code to avoid segv on final user computer

telegram-desktop --help
(telegram-desktop:331): Telegram-WARNING **: 15:49:03.806: Application was
built without embedded fonts, this may lead to font issues.
Aborted

ps: adding last committer in cc