unions

I don't know all the negotiated terms for the UAW agreement obviously, but there are most likely things like maternity/paternity leave, specific requirements for medical benefits coverage, etc. Not to mention other benefits like guaranteed vacation days, sick days, mental health coverage/assistance, that sort of stuff.

Remember that a big part of this strike was because the workers had made concessions during COVID to reduce wages and benefits temporarily, and not even those concessions were not returned after things began to return to normal.