yes it is basically forced work, the institutions can choose your specific schedule mostly its 40 hours/week, but they COULD enslave us for up to 60 hours/week
I know my father grew up in a time when every teenager/20 or so year old had to enroll in the war (he grow up in the cold war, so having a strong army was a priority, because yea.. that will protect us from Russia). He also was a (driver) paramedic.
yes a big part of austrias social services is depended on us slaves. The funny thing is that austria is neutral so our constitution does not allow any war related acts