Telegram-desktop with autostart, minimized settings enabled, opens with a window.
Already tried to write the -startintray parameter in .config/autostart/*telegram.desktop
Update: -startintray is a telegram-desktop option and works correctly from the terminal, but when used in xdg autostart doesn’t work. In the .desktop file, only the -autostart option is generally written when starting tg
I’m not a GNOME user, but in KDE Plasma, if you minimize telegram-desktop to the tray and you log out or shut down the machine without closing telegram-desktop, then the next time you log in and start the application, it’ll automatically start minimized in the tray.