It was fairly different. Though as the war went on, people took the restrictions less seriously and there was always a thriving black market.

The main differences were the number of men leaving to join the military was very different, the lack of military age males meant for the first time large numbers of women joined the work force, and they joined in large range of jobs, blue to white collar.

They rationed food, gas, oil, and tires. No one went hungry, but many goods were hard to get, meat and fresh vegetables were more scarce, and this prompted people planting "victory gardens" in the yards or even open lots in their neighborhoods.

The gas rationing was serious enough, that unless you had a job that required you used a car, you really had to cut back on driving. Tires were rationed, and didn't last as long back then.

There was a black market on ration books and hard to find goods. Gas ration coupons were a very popular item in these markets.

Everyone knew at least someone who was off fighting, most extended families had all their young men off fighting. In some cases they would not come home for several years, and the only form of communication for most people was letters. mail to and from GIs could take months.

News was via Radio and newsreels at movies. TV had just begun in the US, but broadcasts were suspended during the war.

Some jobs had waivers, so they could not be drafted, police, firemen, civilian pilots, etc. These people could still join of their own accord, and many did leaving many cities with thinner police and firefighting forces. In some cases retirees came out of retirement to help fill positions.

Edit to add more.

ALL automobile manufacturing was suspending, so even though getting gas to drive wasn't impossible, getting a good car got harder as the years wore on. Right after the war the car makers went back to the 1941 models and it wasn't until the late 40s new redesigned models started coming out.

Anyplace there was a lot of factories, or a port, or both, like the DC, the CA, Bay Area, Washington state around seattle, LA and San Diego etc, all had housing shortages. Mix in military bases already there or that were built, and you had lots of people packed into the cities.

Many companies that made consumer goods went to all military production. You were not going to get you hands on a new radio for the house, or a new fridge, or even a toaster or sewing machine.

Another aspect I didn't cover was the Khaki Wacky situation, and the DoDs concern over venereal disease causing big problems line they did in WWI.

They had a lot of combat ineffective men in WWI due to rampant social disease. The Army and DoD really learned a lesson on this, and going into WWII they were prepared.

US Law enforcement was less prepared for the large numbers of US women, young women became camp followers and they more than paid prostitutes caused the spread of VD of various forms. Penicillin was not readily available until late in the war, so getting VD was a big deal until then.

The U.S. military had a system, and they set up stations, when men when out on liberty, they were supplied with classes on VD and how to avoid it, and issued condoms.

The stations were in place to clean the soldier or sailors junk when he came back from the night out on the town, and they were told to go there and use the station if they had any kind of exposure, condom or not.

The stations was basically and inspection and washing station. Men who came in were not punished in any way for doing so. The ones who did not come in, and then got VD who were in deep water. Rates of social disease were much lower in WWII than WWI for US troops.

And it wasn't because there was no sex going on, don't let the movies of the time fool you, you great great grandparents had sex too, and liked it!

Another aspect was the big Hollywood studios were all backing the government and went to work making patriotic films and propaganda pieces. They even helped the Army training films, like this one.

https://www.youtube.com/watch?v=D_Ns24Xhv6M

This one is about tanks on the march, and was filmed on a hollywood backlot, with a company of tanks sent for the filming.

There was not a lot of opposition to the war once it got going, there was some politicking and grandstanding by some political figures about war industry corruption, but it was mild by today's standards.