Sorry if this kind of question isn’t allowed here, but I’m at my wit’s end. VB randomly started launching on startup about 2 weeks ago (on EndeavourOS) and I can’t figure out why. There’s no shortcut in ~/config/autostart, it isn’t in the KDE startup apps list, and I can’t find anything virtualbox-related with systemctl either. There’s also no setting in the VB app itself. WTF?
Looks like you need to change the session restore settings in KDE. It’s the virtual box GUI that starts up?
https://docs.kde.org/stable5/en/plasma-desktop/kcontrol/kcmsmserver/index.html