New comment by krkk on void-packages repository

https://github.com/void-linux/void-packages/issues/32053#issuecomment-883968158

Comment:
Could you try `unset QT_QPA_PLATFORMTHEME` and then run telegram? It fixed for me.

When I downgraded to the previous version (2.8.4), there was an message in my stdout, which explained to me why I previously had the default qt theme when selecting a file and why the newer version crashes:
> Unfortunately, **GTK integration conflicts with qgtk2 platformtheme and style**. Therefore, QT_QPA_PLATFORMTHEME and QT_STYLE_OVERRIDE will be unset.
> This can be ignored by setting DESKTOP_APP_I_KNOW_ABOUT_GTK_INCOMPATIBILITY environment variable to any value, **however, if qgtk2 theme or style is used, this will lead to a crash**.
> GTK integration can be disabled by setting DESKTOP_APP_DISABLE_GTK_INTEGRATION to any value. Keep in mind that this will lead to some features being unavailable.

It looks like they removed the message and unsetting the enviroments in https://github.com/desktop-app/lib_base/commit/f493a8174f993119de8d9a5170dc89641bfafbef#diff-5d8c1fecd0ee047b9263a26b184089db23769254a398648acc9a2078a58accbeL226-L227