This may be specific to working in a strong union, but I can give you a side by side comparison of my nurse bestie and I. We graduated at the same time and I got a new grad residency slot in a union hospital while she got one in the non-union hospital where we had been CNAs together. Started at approx. the same time and we'd be considered "same area" even though we worked in different towns.
-Salary: My pay for 12hr day shifts was $74/hr while she made $54/hr including night diff+ a bilingual diff that she took an exam for.
-Orientation: We received the same orientation length of 3 months. Since I was in a union, my orientation was strictly for the unit I was on (They run specialty training separately), while she had the opportunity for a few float shifts to critical care, OR, etc. just for exposure to different areas of the hospital.
-Nursing Assistants: My hospital nearly always had at least one per shift, but if not, they would /usually/ float an extra nurse to assist (along with a breaker). Her unit regularly had zero CNAs and never an extra nurse.
-Breaks: We would miss out on breaks for usually one shift a week, sometimes more during some of the bad Covid waves. She would go for a month or longer at a time with zero breaks for a 12hr shift. Even when Covid waves felt like they had receded, her hospital regularly said they couldn't staff a break nurse.
-Ratios: Being in California, I never worked with more patients than our legal ratios, even during Covid waves when there was a statewide waiver. She regularly worked above ratios with 6-7 patients on telemetry (and this started immediately after she completed orientation), again, even when Covid waves appeared to have receded. As far as we can tell, her hospital took advantage of the ratio waivers for as long as they could, even when censuses were lower.
-Management: I always had cordial experiences with managers and mostly found them to be nice and that they cared about their work. My friend had managers who would regularly berate her and her co-workers like, "Why aren't your patients being mobilized, why are meds being given late, etc." without consideration to the fact that they were working over ratio without relief nurses or CNAs.
Suffice it to say, she now works at my union hospital. Some people can find unions to be stuffy, ineffective, or too many rules. Those are often the same people who don't get involved with advocating for better working conditions. The most important aspect of union work is solidarity and collective power.