USAF in the 1980s was/is(?) not too different from all the above. All the below is told from the male POV, but the female POV was/is almost identical with a couple extra options (mostly pants or skirts and maternity stuff).
You’d be issued any occupation-specific clothing in adequate, though not princely quantity. This would be hospital whites, aircrew flight suits, some specialist coveralls, etc. As that stuff got stained or worn you’d turn it in for fresh. I never encountered a problem with that but I suppose if you wanted new every week somebody would prevent that.
Beyond that there was the office-worker uniform (= civilian suit) and the works-outdoors uniform called “fatigues” (= civilian blue collar outfit). Which was then olive drab and is now some flavor of camo.
The officer worker uniform: Enlisted would be issued enough and officers were expected to buy their own. There were two lines available for purchase: the cheaply made bulk stuff that was issued to the enlisted, and a nicer grade of better material & craftsmanship that senior enlisted or officers were expected to buy.
That was dress shoes, slacks, belt, short and long sleeve dress shirts, suit jacket, tie, hat (flat fabric cap & round billed hat), plus insignia, ribbons, etc. Plus a couple gradations of windbreaker or trench coat for the weather.
If you didn’t work in an office, one of each was plenty since you rarely wore this uniform. If you did work in an office, you needed two full suits plus a week’s worth of shirts.
The fatigue uniform was simpler: boots, pants, belt, undershirt, shirt, and baseball cap. Plus a winter coat. It was only available in the issue quality. All the devices and insignia were sown or embroidered on. Again enlisted were issued and officers bought their own. Most officers in my era were either pilots or office workers and never had a reason to buy these uniforms. Maintenance and civil engineering officers wore these every day instead of the office worker uniform. Almost all enlisted had use for these since they were occasionally press-ganged into manual labor even if they had an office job.
I understand that in recent years there’s been a trend for most office workers to wear the now-camo fatigues most days instead of the traditional office worker uniform. It shows solidarity with the troops in the war or something.
Finally that leaves the fancy dress uniforms; the military equivalent to the tuxedo.
Junior enlisted didn’t have a separate one since they almost never needed one. Instead there was a prescribed way to gussy up the basic blue suit: change to a white civilian dress shirt & a black bow-tie.
OTOH, most senior enlisted and all officers had to buy the so-called mess dress. Which was essentially a tuxedo. Extra shiny shoes, pants with side stripe, ruffle-y shirt with studs & cufflinks instead of buttons, cummerbund, and short-cut overjacket. It also required totally different types of ribbons or medals, insignia and badges.
There were a couple more extremely specialized uniforms for honor guards, embassy officers, etc. But nobody had those unless they had that job.
So as an officer pilot I owned 6 issued flight suits & two matching jackets, one dress blue suit with one blue shirt plus windbreaker I bought, and 1 mess dress I bought. And two hats I bought: the flat fabric cap we always wore and the round billed hat we never wore.
My wife was a JAG officer and so worked in an office. She had 2 complete blue suits she’d bought with skirt & pants for each, 6 short- and 6 long-sleeve shirts, issue purse. Plus one mess dress she’d bought. And the two women’s equivalent hats to mine.
Bottom line: not really much different than any corporate warrior today. Just a little more prescribed and less ad lib.
Oh yeah, PT uniforms. What is this PT of which you other services speak?
Seriously there was no uniform for that. Yes we usually had PT, but you wore whatever you wanted. The BX did sell some USAF logo stuff that was popular, but by no means required or standardized.