I think it's improved a bit where powders are concerned, not so much with primers. I think all the usual suppliers are getting regular shipments, some are still trying to fill back orders so it never shows up as "in stock". When it does show up somewhere it doesn't last long.
Powder Valley is a good place to check, however last I knew they were weeks behind on filling orders.
If you think powder is bad, try finding .257 Roberts brass.....